CMF / CRF Details

CMF ID: 9125

Install enhanced RRFB pedestrian crossing at mid-block crossing location

Description: Mid-block pedestrian crossings enhanced with Rectangular Rapid Flashing Beacon (RRFB)

Prior Condition: Previously unmarked or at a location with prior high-visibility markings. The data set pooled these locations in the estimation of CMFs.

Category: Pedestrians

Study: Safety Effectiveness of Pedestrian Crossing Enhancements, Monsere et al.,, 2017

 
Star Quality Rating: 3 Stars   [View score details]
Crash Modification Factor (CMF)
Value: 0.93
Adjusted Standard Error:
Unadjusted Standard Error: 0.22
Crash Reduction Factor (CRF)
Value: 7   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 22
Applicability
Crash Type: Rear end
Crash Severity: All
Roadway Types: All
Number of Lanes: 2 to 5
Road Division Type: Undivided
Speed Limit: 20 to 45mph
Area Type: All
Traffic Volume:
Average Traffic Volume: 13000 Annual Average Daily Traffic (AADT)
Time of Day: All
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: 2010 to 2014
Municipality:
State: OR
Country: USA
Type of Methodology Used: Before/after using empirical Bayes or full Bayes
Sample Size (crashes): 18 crashes before, 26 crashes after
Sample Size (sites): 15 sites before, 15 sites after
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Jan-17-2018
Comments: all rear-end crashes, not just pedestrian related crashes.