Study Details
Study Title: NCHRP Report 518: Safety Evaluation of Permanent Raised Pavement Markers
Authors: Bahar et al.
Publication Date: 2004
Abstract:
Study Citation: Bahar, G., Mollett, C., Persaud, B., Lyon, C., Smiley, A., Smahel, T., and McGee, H., "NCHRP Report 518: Safety Evaluation of Permanent Raised Pavement Markers." Washington, D.C., Transportation Research Board, National Research Council, (2004)
Study Report: Download the Study Report Document
CMFs Associated With This Study
Category: Delineation
Countermeasure: Install snowplowable, permanent raised pavement markers
CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
---|---|---|---|---|---|---|
1.13[I*] | -13 | Nighttime | All | Principal Arterial Other Freeways and Expressways | Rural |
0.94[I*] | 6 | Nighttime | All | Principal Arterial Other Freeways and Expressways | Rural |
0.67[I] | 33 | Nighttime | All | Principal Arterial Other Freeways and Expressways | Rural |
Countermeasure: Install snowplowable, permanent raised pavement markers (Radius greater than 1640 ft)
CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
---|---|---|---|---|---|---|
1.16[B] | -16 | Nighttime | All | Not Specified | Rural |
0.99[B*] | 1 | Nighttime | All | Not Specified | Rural |
0.76[B] | 24 | Nighttime | All | Not Specified | Rural |
Countermeasure: Install snowplowable, permanent raised pavement markers (Radius less than or equal to 1640 ft)
CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
---|---|---|---|---|---|---|
1.43[B] | -43 | Nighttime | All | Not Specified | Rural |
1.26[B] | -26 | Nighttime | All | Not Specified | Rural |
1.03[B*] | -3 | Nighttime | All | Not Specified | Rural |