CMF / CRF Details

CMF ID: 5500

Install raised pavement markers with restriping (center and edgelines)

Description: Install raised pavement markers with restriping (center and edgelines)

Prior Condition: Without raised pavement markers and striping

Category: Delineation

Study: Developing Louisiana Crash Reduction Factors, Sun and Das, 2013

 
Star Quality Rating: 2 Stars   [View score details]
Crash Modification Factor (CMF)
Value: 0.69
Adjusted Standard Error:
Unadjusted Standard Error: 0.21
Crash Reduction Factor (CRF)
Value: 31   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 21
Applicability
Crash Type: Nighttime
Crash Severity: All
Roadway Types: Principal Arterial Other Freeways and Expressways
Number of Lanes:
Road Division Type:
Speed Limit:
Area Type: Rural
Traffic Volume: Maximum of 20000 Annual Average Daily Traffic (AADT)
Average Traffic Volume:
Time of Day: Night
If countermeasure is intersection-based
Intersection Type:
Intersection Geometry:
Traffic Control:
Major Road Traffic Volume:
Minor Road Traffic Volume:
Average Major Road Volume :
Average Minor Road Volume :
Development Details
Date Range of Data Used: 2002 to 2010
Municipality:
State: LA
Country: USA
Type of Methodology Used: Non-regression cross-section
Sample Size (crashes): 48 crashes
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Apr-30-2014
Comments: