CMF / CRF Details

CMF ID: 2697

Install high-visibility yellow, continental type crosswalks at schools

Description:

Prior Condition:  standard, yellow school crosswalks

Category: Pedestrians

Study: An Empirical Bayesian Evaluation of the Safety Effects of High-Visibility School (Yellow) Crosswalks in San Francisco, Feldman et al., 2010

 
Star Quality Rating:4 Stars  [View score details]
Rating Points Total:110
Crash Modification Factor (CMF)
Value:0.63
Adjusted Standard Error:
Unadjusted Standard Error:0.12
Crash Reduction Factor (CRF)
Value:37  (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:12
Applicability
Crash Type:Vehicle/pedestrian
Crash Severity:All
Roadway Types:Not Specified
Street Type:
Minimum Number of Lanes:
Maximum Number of Lanes:
Number of Lanes Direction:
Number of Lanes Comment:
Crash Weather:Not specified
Road Division Type:
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
Area Type:Urban
Traffic Volume:Minimum of 567 to Maximum of 43199 Average Daily Traffic (ADT)
Average Traffic Volume:
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:1994 to 2006
Municipality:San Francisco
State:CA
Country:
Type of Methodology Used:Before/after using empirical Bayes or full Bayes
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Aug 11, 2010
Comments: