CMF / CRF Details

CMF ID: 9017

Install advanced yield or stop markings and signs

Description: Install advanced yield or stop markings and signs

Prior Condition: No advanced yield or stop markings and signs

Category: Pedestrians

Study: Development of Crash Modification Factors for Uncontrolled Pedestrian Crossing Treatments, Zegeer et al., 2017

 
Star Quality Rating: 3 Stars   [View score details]
Crash Modification Factor (CMF)
Value: 0.75
Adjusted Standard Error:
Unadjusted Standard Error: 0.23
Crash Reduction Factor (CRF)
Value: 25   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 23
Applicability
Crash Type: Vehicle/pedestrian
Crash Severity: All
Roadway Types: Minor Arterial
Number of Lanes: 2 to 8
Road Division Type:
Speed Limit:
Area Type: Urban and suburban
Traffic Volume: Minimum of 340 to Maximum of 52892 Annual Average Daily Traffic (AADT)
Average Traffic Volume: 15735 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: 2004 to 2013
Municipality:
State: AZ, FL, IL, MA, NY, NC, OR, VA, WI
Country: USA
Type of Methodology Used: Other before/after
Sample Size (crashes): 18 crashes before, 21 crashes after
Sample Size (sites): 69 sites before, 69 sites after
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Nov-17-2017
Comments: Methodology used was a combination of EB before-after and cross-sectional estimations. Also, study sites were a combination of intersection and mid-block locations.