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U.S. & Canada (476)
International (136)

Intersection Geometry

Traffic Control

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Category: Access management (6)
- Subcategory: None (6)
  - Countermeasure: Restrict left or right turn (transit-related crashes)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.72 27.5
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Restrict left or right turn (transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.96 3.5
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 0.87 13.4
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.72	27.5		All	All	Urban	Shalah et al., 2009	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.96	3.5		All	All	Urban	Shalah et al., 2009	Only for transit related crash...[read more]

	0.87	13.4		All	All	Urban	Shalah et al., 2009	Only for transit related crash...[read more]

Category: Advanced technology and ITS (20)

Subcategory: None (20)

Countermeasure: Install changeable "Queue Ahead" warning signs

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.84	16		Rear end	A (serious injury),B (minor injury),C (possible injury)	Urban	Elvik, R. and Vaa, T., 2004	Only for transit related crash...[read more]

1.16 -16
Rear end
O (property damage only) Urban Elvik, R. and Vaa, T., 2004 Only for transit related crash...[read more]

	1.16	-16		Rear end	O (property damage only)	Urban	Elvik, R. and Vaa, T., 2004	Only for transit related crash...[read more]

Countermeasure: Install changeable crash ahead warning signs

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.56	44		All	A (serious injury),B (minor injury),C (possible injury)	Urban	Elvik, R. and Vaa, T., 2004	Only for transit related crash...[read more]

Countermeasure: Install changeable speed warning signs for individual drivers
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.54 46
  All
  All Not specified Elvik, R. and Vaa, T., 2004 Only for transit related crash...[read more]
Countermeasure: Install ramp meter
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.59 41
  All
  All Urban Alluri et al., 2020 Only for transit related crash...[read more]
- 0.64 36
  All
  All Urban Liu and Wang, 2013 Only for transit related crash...[read more]
Countermeasure: Install Variable Speed Limits
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.71 29
  All
  All Urban Pu et al., 2017 Only for transit related crash...[read more]
- 0.75 25
  All
  O (property damage only) Urban Pu et al., 2017 Only for transit related crash...[read more]
- 0.72 28
  All
  Urban Pu et al., 2017 Only for transit related crash...[read more]
- 0.81 19
  All
  Urban Pu et al., 2017 Only for transit related crash...[read more]

Category: Delineation (10)
- Subcategory: On-pavement markings (10)
  - Countermeasure: Install in-lane curve warning pavement markings
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.616 38.4
      All
      All Lyon et al., 2017 Only for transit related crash...[read more]
    - 0.649 35.1
      Nighttime
      All Lyon et al., 2017 Only for transit related crash...[read more]
    - 0.647 35.3
      Other
      All Lyon et al., 2017 Only for transit related crash...[read more]
    - 1.67 -67
      Run off road
      All Lyon et al., 2017 Only for transit related crash...[read more]
    - 1.01 -1
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Lyon et al., 2017 Only for transit related crash...[read more]
Category: Intersection geometry (8)
- Subcategory: Turn lanes (8)
  - Countermeasure: Presence of exclusive left or right turn on either approach (transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.96 3.6
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Presence of exclusive left turn (transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.88 11.7
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Presence of right turning lane on arterial with signal coordination
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.06 93.6
      Rear end
      All Urban and suburban Wei and Tarko, 2011 Only for transit related crash...[read more]
    - 0.32 68.3
      Angle
      All Urban and suburban Wei and Tarko, 2011 Only for transit related crash...[read more]
Category: Intersection traffic control (116)
- Subcategory: Traffic control visibility (20)
  - Countermeasure: Install dynamic signal warning flashers
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.792 20.8
      Rear end
      All All Srinivasan, et al., 2011 Only for transit related crash...[read more]
    - 0.814 18.6
      All
      All All Srinivasan, et al., 2011 Only for transit related crash...[read more]
    - 0.745 25.5
      Angle
      All All Srinivasan, et al., 2011 Only for transit related crash...[read more]
    - 0.82 18
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) All Srinivasan, et al., 2011 Only for transit related crash...[read more]
    - 0.956 4.4
      Truck related
      All All Srinivasan, et al., 2011 Only for transit related crash...[read more]
  - Countermeasure: Installation of an actuated advance warning dilemma zone protection system at high-speed signalized intersections
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.564 43.6
      Angle
      All Not specified Appiah et al., 2011 Only for transit related crash...[read more]
    - 0.988 1.2
      Rear end
      All Not specified Appiah et al., 2011 Only for transit related crash...[read more]
    - 0.887 11.3
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Appiah et al., 2011 Only for transit related crash...[read more]
    - 0.995 0.5
      Truck related
      All Not specified Appiah et al., 2011 Only for transit related crash...[read more]
    - 0.918 8.2
      All
      All Not specified Appiah et al., 2011 Only for transit related crash...[read more]
- Subcategory: Signal phasing or timing (60)
  - Countermeasure: Change number of traffic signal cycles per hour on arterial with signal coordination from X to Y
    - F(x) F(x)
      Rear end
      All Urban and suburban Wei and Tarko, 2011 Only for transit related crash...[read more]
  - Countermeasure: Install adaptive traffic signal control
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.807 19.3
      Angle
      All Urban and suburban Fink et al., 2015 Only for transit related crash...[read more]
    - 0.958 4.2
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Alluri et al., 2020 Only for transit related crash...[read more]
    - 0.943 5.7
      All
      O (property damage only) Alluri et al., 2020 Only for transit related crash...[read more]
    - 0.878 12.2
      Rear end
      All Alluri et al., 2020 Only for transit related crash...[read more]
    - 0.948 5.2
      All
      All Alluri et al., 2020 Only for transit related crash...[read more]
    - 0.6 40
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.82 18
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.2 80
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.87 13
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.64 36
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.22 78
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.86 14
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.66 34
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.77 23
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.6 40
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.78 22
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.45 55
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.67 33
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.5 50
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 1.04 -4
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.6 40
      Multiple vehicle
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.79 21
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
    - 0.87 13
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Ma et al., 2015 Only for transit related crash...[read more]
    - 0.83 17
      All
      All Urban and suburban Ma et al., 2015 Only for transit related crash...[read more]
    - 0.92 8
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Ma et al., 2015 Only for transit related crash...[read more]
    - 0.79 21
      All
      All Urban and suburban Ma et al., 2015 Only for transit related crash...[read more]
    - 0.92 8
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Ma et al., 2015 Only for transit related crash...[read more]
    - 0.996 0.4
      All
      All Urban and suburban Ma et al., 2015 Only for transit related crash...[read more]
    - 0.89 11
      Multiple vehicle
      All Urban and suburban Khattak et al., 2018 Only for transit related crash...[read more]
- Subcategory: Other (36)
  - Countermeasure: Coordinate arterial signals
    - 0.42 58
      All
      A (serious injury),B (minor injury),C (possible injury) Urban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.79 21
      All
      All Urban and suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.79 21
      All
      O (property damage only) Urban and suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.42 58
      All
      A (serious injury),B (minor injury),C (possible injury) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 1.25 -25
      All
      O (property damage only) Urban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.38 62
      All
      All Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.33
      All
      A (serious injury),B (minor injury),C (possible injury) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.41 59
      All
      O (property damage only) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 1.01 -1
      All
      All Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.86 14
      All
      O (property damage only) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 1.1 -10
      All
      All Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 2.24 -124
      All
      A (serious injury),B (minor injury),C (possible injury) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.8 20
      All
      O (property damage only) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.48 52
      All
      A (serious injury),B (minor injury),C (possible injury) Urban and suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 0.95 5
      All
      All Urban Williamson et al., 2018 Only for transit related crash...[read more]
    - 2.63 -163
      All
      O (property damage only) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 1.25 -25
      All
      A (serious injury),B (minor injury),C (possible injury) Suburban Williamson et al., 2018 Only for transit related crash...[read more]
    - 1.15 -15
      All
      All Suburban Williamson et al., 2018 Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.54	46		All	All	Not specified	Elvik, R. and Vaa, T., 2004	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.59	41		All	All	Urban	Alluri et al., 2020	Only for transit related crash...[read more]

	0.64	36		All	All	Urban	Liu and Wang, 2013	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.71	29		All	All	Urban	Pu et al., 2017	Only for transit related crash...[read more]

	0.75	25		All	O (property damage only)	Urban	Pu et al., 2017	Only for transit related crash...[read more]

	0.72	28		All		Urban	Pu et al., 2017	Only for transit related crash...[read more]

	0.81	19		All		Urban	Pu et al., 2017	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.616	38.4		All	All		Lyon et al., 2017	Only for transit related crash...[read more]

	0.649	35.1		Nighttime	All		Lyon et al., 2017	Only for transit related crash...[read more]

	0.647	35.3		Other	All		Lyon et al., 2017	Only for transit related crash...[read more]

	1.67	-67		Run off road	All		Lyon et al., 2017	Only for transit related crash...[read more]

	1.01	-1		All	K (fatal),A (serious injury),B (minor injury),C (possible injury)		Lyon et al., 2017	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.96	3.6		All	All	Urban	Shalah et al., 2009	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.88	11.7		All	All	Urban	Shalah et al., 2009	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.06	93.6		Rear end	All	Urban and suburban	Wei and Tarko, 2011	Only for transit related crash...[read more]

	0.32	68.3		Angle	All	Urban and suburban	Wei and Tarko, 2011	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.792	20.8		Rear end	All	All	Srinivasan, et al., 2011	Only for transit related crash...[read more]

	0.814	18.6		All	All	All	Srinivasan, et al., 2011	Only for transit related crash...[read more]

	0.745	25.5		Angle	All	All	Srinivasan, et al., 2011	Only for transit related crash...[read more]

	0.82	18		All	K (fatal),A (serious injury),B (minor injury),C (possible injury)	All	Srinivasan, et al., 2011	Only for transit related crash...[read more]

	0.956	4.4		Truck related	All	All	Srinivasan, et al., 2011	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.564	43.6		Angle	All	Not specified	Appiah et al., 2011	Only for transit related crash...[read more]

	0.988	1.2		Rear end	All	Not specified	Appiah et al., 2011	Only for transit related crash...[read more]

	0.887	11.3		All	A (serious injury),B (minor injury),C (possible injury)	Not specified	Appiah et al., 2011	Only for transit related crash...[read more]

	0.995	0.5		Truck related	All	Not specified	Appiah et al., 2011	Only for transit related crash...[read more]

	0.918	8.2		All	All	Not specified	Appiah et al., 2011	Only for transit related crash...[read more]

	F(x)	F(x)		Rear end	All	Urban and suburban	Wei and Tarko, 2011	Only for transit related crash...[read more]

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.807	19.3		Angle	All	Urban and suburban	Fink et al., 2015	Only for transit related crash...[read more]

	0.958	4.2		All	K (fatal),A (serious injury),B (minor injury),C (possible injury)		Alluri et al., 2020	Only for transit related crash...[read more]

	0.943	5.7		All	O (property damage only)		Alluri et al., 2020	Only for transit related crash...[read more]

	0.878	12.2		Rear end	All		Alluri et al., 2020	Only for transit related crash...[read more]

	0.948	5.2		All	All		Alluri et al., 2020	Only for transit related crash...[read more]

	0.6	40		Multiple vehicle	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.82	18		Multiple vehicle	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.2	80		Multiple vehicle	All	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.87	13		Multiple vehicle	All	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.64	36		Multiple vehicle	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.22	78		Multiple vehicle	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.86	14		Multiple vehicle	All	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.66	34		Multiple vehicle	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.77	23		Multiple vehicle	All	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.6	40		Multiple vehicle	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.78	22		Multiple vehicle	All	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

	0.45	55		Multiple vehicle	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Urban and suburban	Khattak et al., 2018	Only for transit related crash...[read more]

Category: Roadway (92)

Subcategory: Number of lanes (12)

Countermeasure: Five to six lane conversion
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  1.03 -3
  All
  All Urban Bauer et al., 2004 Only for transit related crash...[read more]
- 1.04 -4
  All
  A (serious injury),B (minor injury),C (possible injury),O (property damage only) Urban Bauer et al., 2004 Only for transit related crash...[read more]
- 1.07 -7
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban Bauer et al., 2004 Only for transit related crash...[read more]

Countermeasure: Four to five lane conversion

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	1.1	-10		All	A (serious injury),B (minor injury),C (possible injury),O (property damage only)	Urban	Bauer et al., 2004	Only for transit related crash...[read more]

1.11 -11
All
K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban Bauer et al., 2004 Only for transit related crash...[read more]
1.11 -11
All
All Urban Bauer et al., 2004 Only for transit related crash...[read more]

Subcategory: Lane width (6)
- Countermeasure: Widen managed lane envelope
  - 0.98 2
    All
    All Urban and suburban Avelar and Fitzpatrick, 2018 Only for transit related crash...[read more]
  - 0.956 4.4
    Other
    K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban and suburban Avelar and Fitzpatrick, 2018 Only for transit related crash...[read more]
  - 0.98 2
    All
    All Urban and suburban Avelar and Fitzpatrick, 2018 Only for transit related crash...[read more]

Subcategory: Lane restrictions (74)

Countermeasure: Convert continuous access HOV lanes to limited-access (HOV and left lane crashes)
- 1.2 -19.6
  All
  K (fatal),A (serious injury) Jang et al., 2009 Only for transit related crash...[read more]
- 1.54 -54.1
  All
  All Jang et al., 2009 Only for transit related crash...[read more]
Countermeasure: Convert High-Occupancy-Vehicle (HOV) lanes to High-Occupancy-Toll (HOT) lanes
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  1.25 -25
  Angle,Sideswipe,Other
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 1.27 -27
  Rear end
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.62 38
  Angle,Sideswipe,Other
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.61 39
  Rear end
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.72 28
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 1.22 -22
  Other
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.77 23
  Other
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.88 12
  Angle,Sideswipe,Other
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.89 11
  Other
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 1.08 -8
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 1.19 -19
  All
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 1.28 -28
  All
  O (property damage only) Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.8 20
  All
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 1.35 -35
  All
  O (property damage only) Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.63 37
  All
  O (property damage only) Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.99 1
  Rear end
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.96 4
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.95 5
  All
  All Urban Cao et al., 2011 Only for transit related crash...[read more]
- 0.96 4
  All
  C (possible injury) Urban Cao et al., 2011 Only for transit related crash...[read more]
- 1.23 -23
  All
  All Abuzwidah and Abdel-Aty, 2017 Only for transit related crash...[read more]
- 0.89 11
  All
  O (property damage only) Urban Cao et al., 2011 Only for transit related crash...[read more]
- 1.06 -6
  All
  B (minor injury) Urban Cao et al., 2011 Only for transit related crash...[read more]
- 0.39 61
  All
  A (serious injury) Urban Cao et al., 2011 Only for transit related crash...[read more]
- 0 100
  All
  K (fatal) Urban Cao et al., 2011 Only for transit related crash...[read more]
Countermeasure: Expand truck lane restrictions on 2-lane directional interstate segments (screened)
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.98 2
  Truck related
  All Not specified Fontaine et al., 2009 Only for transit related crash...[read more]
Countermeasure: Implement strict truck lane restrictions on 2-lane directional interstate segments (screened)
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  1.23 -23
  Truck related
  All Not specified Fontaine et al., 2009 Only for transit related crash...[read more]

Countermeasure: Implement truck lane restrictions

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	1.32	-32		All	K (fatal),A (serious injury),B (minor injury),C (possible injury)		Das et al., 2018	Only for transit related crash...[read more]

1.05 -5
All
K (fatal),A (serious injury),B (minor injury),C (possible injury) Das et al., 2018 Only for transit related crash...[read more]
0.68 32
Truck related
K (fatal),A (serious injury),B (minor injury),C (possible injury) Das et al., 2018 Only for transit related crash...[read more]
1.17 -17
Truck related
K (fatal),A (serious injury),B (minor injury),C (possible injury) Das et al., 2018 Only for transit related crash...[read more]

Countermeasure: Implement truck lane restrictions on 2-lane directional interstate segments (screened)
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.95 5
  Truck related
  All Not specified Fontaine et al., 2009 Only for transit related crash...[read more]
Countermeasure: Implement truck lane restrictions on 4-lane freeways
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.68 32
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Fontaine, 2008 Only for transit related crash...[read more]
- 0.89 11
  All
  All Fontaine, 2008 Only for transit related crash...[read more]
Countermeasure: Implement truck lane restrictions on 4-lane freeways (truck crashes)
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.73 27
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Fontaine, 2008 Only for transit related crash...[read more]
- 1.12 -12
  All
  All Fontaine, 2008 Only for transit related crash...[read more]

Category: Signs (210)

Subcategory: None (210)

Countermeasure: Improve Curve Delineation

	CMF	CRF(%)	Quality	Crash Type	Crash Severity	Area Type	Reference	Comments
	0.82	18		Non-intersection	K (fatal),A (serious injury),B (minor injury),C (possible injury)	Rural	Srinivasan et al., 2009	Only for transit related crash...[read more]

0.725 27.5
Non-intersection
All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
0.746 25.4
Head on,Non-intersection,Run off road,Sideswipe
All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
0.914 8.6
Non-intersection
All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
0.903 9.7
Head on,Non-intersection,Run off road,Sideswipe
All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]

Countermeasure: Install a combination of chevron signs, curve warning signs, and/or sequential flashing beacons
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.638 36.2
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.545 45.5
  Wet road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.49 51
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.764 23.6
  Run off road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.582 41.8
  All
  O (property damage only) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.265 73.5
  Nighttime
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.577 42.3
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.506 49.4
  Wet road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.469 53.1
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.568 43.2
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.43 57
  All
  O (property damage only) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.746 25.4
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.445 55.5
  Run off road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.42 58
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.535 46.5
  Wet road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.575 42.5
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.21 79
  Nighttime
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.478 52.2
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.51 49
  All
  O (property damage only) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.592 40.8
  Nighttime
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.607 39.3
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.585 41.5
  Run off road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.672 32.8
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.529 47.1
  Wet road
  All All Montella, 2009 Only for transit related crash...[read more]
- 0.606 39.4
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.608 39.2
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.381 61.9
  All
  O (property damage only) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.635 36.5
  Angle
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.511 48.9
  Wet road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.728 27.2
  Run off road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.612 38.8
  All
  O (property damage only) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.757 24.3
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.809 19.1
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.976 2.4
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.715 28.5
  Angle,Fixed object,Head on,Rear end,Rear to rear,Sideswipe,Single vehicle
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.867 13.3
  Angle,Fixed object,Head on,Rear end,Rear to rear,Sideswipe,Single vehicle
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 1.266 -26.6
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Not specified Montella, 2009 Only for transit related crash...[read more]
- 1.023 -2.3
  Nighttime
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.616 38.4
  Angle,Fixed object,Head on,Rear end,Rear to rear,Sideswipe,Single vehicle
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 1.086 -8.6
  Nighttime
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.976 2.4
  All
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.72 28
  Angle,Fixed object,Frontal and opposing direction sideswipe,Head on,Rear end,Rear to rear,Sideswipe,Single vehicle
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.72 28
  Run off road
  All Not specified Montella, 2009 Only for transit related crash...[read more]
- 1.526 -52.6
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Not specified Montella, 2009 Only for transit related crash...[read more]
- 0.677 32.3
  Angle,Fixed object,Frontal and opposing direction sideswipe,Head on,Rear end,Rear to rear,Sideswipe,Single vehicle
  All Not specified Montella, 2009 Only for transit related crash...[read more]
Countermeasure: Install an intersection conflict warning system (ICWS) with a combination of overhead and advanced post mounted signs (various messages) and flashers
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.704 29.6
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.697 30.3
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.742 25.8
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
Countermeasure: Install an intersection conflict warning system (ICWS) with overhead signs (various messages) and flashers at the intersection on major; loop on minor
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.74 26
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.6 40
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.807 19.3
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
Countermeasure: Install an intersection conflict warning system (ICWS) with overhead signs (various messages) and flashers at the intersection on minor; loop on major
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.892 10.8
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 1.084 -8.4
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.944 5.6
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
Countermeasure: Install an intersection conflict warning system (ICWS) with post mounted signs (various messages) and flashers at the intersection on minor; loop on major
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.69 31
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 1.247 -24.7
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.763 23.7
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 1.064 -6.4
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.886 11.4
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.896 10.4
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
Countermeasure: Install an intersection conflict warning system (ICWS) with post mounted signs (various messages) and flashers in advance of the intersection on major; loop on minor
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.519 48.1
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.769 23.1
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.745 25.5
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.45 55
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.454 54.6
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.734 26.6
  All
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
Countermeasure: Install chevron signs on horizontal curves
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.75 25
  Nighttime,Non-intersection
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.78 22
  Head on,Nighttime,Non-intersection,Run off road,Sideswipe
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.96 4
  Non-intersection
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.94 6
  Head on,Non-intersection,Run off road,Sideswipe
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.84 16
  Non-intersection
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
Countermeasure: Install intersection conflict warning systems (ICWS) for four-lane at two-lane intersections
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.83 17
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.8 20
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.95 5
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.88 12
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.55 45
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.72 28
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.8 20
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.89 11
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.85 15
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.74 26
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 1.05 -5
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.64 36
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
Countermeasure: Install intersection conflict warning systems (ICWS) for two-lane at two-lane intersections
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.73 27
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.69 31
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.79 21
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.73 27
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.8 20
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.7 30
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.78 22
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.53 47
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 1.09 -9
  All
  A (serious injury),B (minor injury),C (possible injury) Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.77 23
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 0.86 14
  All
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
- 1.95 -95
  Angle
  All Rural Himes et al, 2016 Only for transit related crash...[read more]
Countermeasure: Install new fluorescent curve signs or upgrade existing curve signs to fluorescent sheeting
- CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
  0.82 18
  Non-intersection
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.82 18
  Head on,Non-intersection,Run off road,Sideswipe
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.75 25
  Non-intersection
  K (fatal),A (serious injury),B (minor injury),C (possible injury) Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.66 34
  Head on,Nighttime,Non-intersection,Run off road,Sideswipe
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]
- 0.65 35
  Nighttime,Non-intersection
  All Rural Srinivasan et al., 2009 Only for transit related crash...[read more]

Category: Speed management (2)
- Subcategory: None (2)
  - Countermeasure: Install variable speed limit signs
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.92 8
      All
      All Urban Bham et al., 2010 Only for transit related crash...[read more]
Category: Transit (48)
- Subcategory: None (48)
  - Countermeasure: Implement transit lane priority (at transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.806 19.4
      All
      All Naznin et al., 2015 Only for transit related crash...[read more]
  - Countermeasure: Implement transit signal and lane priority (at transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.836 16.4
      All
      All Naznin et al., 2015 Only for transit related crash...[read more]
  - Countermeasure: Implement transit signal priority
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.873 12.7
      All
      All Urban Song and Noyce, 2018 Only for transit related crash...[read more]
    - 0.841 15.9
      All
      O (property damage only) Urban Song and Noyce, 2018 Only for transit related crash...[read more]
    - 0.949 5.1
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban Song and Noyce, 2018 Only for transit related crash...[read more]
    - 0.88 12
      All
      All Urban Alluri et al., 2020 Only for transit related crash...[read more]
    - 0.86 14
      All
      K (fatal),A (serious injury),B (minor injury),C (possible injury) Urban Alluri et al., 2020 Only for transit related crash...[read more]
    - 0.92 8
      All
      O (property damage only) Urban Alluri et al., 2020 Only for transit related crash...[read more]
  - Countermeasure: Install transit signal priority (TSP) technology (at transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      1.28 -28.4
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 1.32 -31.8
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 0.861 13.9
      All
      All Naznin et al., 2015 Only for transit related crash...[read more]
  - Countermeasure: Install transit signal priority (TSP) technology (transit-related crashes)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      1.26 -26
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 1.52 -51.5
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Presence of far-side transit stop location (transit-related crashes)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.55 45
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Presence of near-side transit stop location (transit-related crashes)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      1.38 -38.2
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 1.85 -84.8
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Presence of transit service
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      1.31 -30.8
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 1.32 -31.9
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Use of bus as public transit type rather than streetcar
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      1.73 -73.1
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 1.67 -66.7
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 1.23 -23.1
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 1.24 -23.8
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Use of bus as public transit type rather than streetcar (transit-related crashes)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.55 45.3
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Use of bus as public transit type rather than streetcar (transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.87 13.8
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
Category: Work zone (100)
- Subcategory: None (100)
  - Countermeasure: Active work with no lane closure (compared to no work zone)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      1.39 -39
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.4 -40
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.39 -39
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.41 -41
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.13 -13
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.19 -19
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.17 -17
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.31 -31
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.3 -30
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.32 -32
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.37 -37
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 2.26 -126
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.45 -45
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.34 -34
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.4 -40
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.41 -41
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.36 -36
      Nighttime
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.8 -80
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.23 -23
      Nighttime
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 2.04 -104
      Nighttime
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.64 -64
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.29 -29
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.58 -58
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
  - Countermeasure: Active work with temporary lane closure (compared to no work zone)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      1.9 -90
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.46 -46
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.42 -42
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.49 -49
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.61 -61
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.71 -71
      Nighttime
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.57 -57
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.66 -66
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.77 -77
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.65 -65
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.81 -81
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.75 -75
      Nighttime
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.8 -80
      Nighttime
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.32 -32
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.63 -63
      Nighttime
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.26 -26
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.12 -12
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.34 -34
      Nighttime
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.6 -60
      All
      A (serious injury),B (minor injury),C (possible injury) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.26 -26
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.65 -65
      All
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.53 -53
      Nighttime
      All Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.87 -87
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
    - 1.34 -34
      All
      O (property damage only) Not specified Ullman et al., 2008 Only for transit related crash...[read more]
  - Countermeasure: Increasing the inside shoulder width inside the work zone by one foot
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.97 3
      All
      All Urban Tarko, Andrew P.; Bin Islam, Mouyid ; Thomaz, Jose E., 2011 Only for transit related crash...[read more]
  - Countermeasure: Increasing the outside shoulder width inside the work zone by one foot
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.948 5.2
      All
      All Urban Tarko, Andrew P.; Bin Islam, Mouyid ; Thomaz, Jose E., 2011 Only for transit related crash...[read more]
    - 1.043 -4.3
      Single vehicle
      All Urban Tarko, Andrew P.; Bin Islam, Mouyid ; Thomaz, Jose E., 2011 Only for transit related crash...[read more]
Category: Access management (6)
- Subcategory: None (6)
  - Countermeasure: Restrict left or right turn (transit-related crashes)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.72 27.5
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
  - Countermeasure: Restrict left or right turn (transit-serviced locations)
    - CMF CRF(%) Quality Crash Type Crash Severity Area Type Reference Comments
      0.96 3.5
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]
    - 0.87 13.4
      All
      All Urban Shalah et al., 2009 Only for transit related crash...[read more]