CMF / CRF Details

CMF ID: 9025

Install pedestrian countdown timer

Description: Install pedestrian countdown timer

Prior Condition:  No PCS installed

Category: Intersection traffic control

Study: Developing Crash Modification Factors to Quantify Impacts of Pedestrian Countdown Signals to Drivers, Kitali et al., 2017

Star Quality Rating:5 Stars  [View score details]
Rating Points Total:140
Crash Modification Factor (CMF)
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Type:All
Crash Severity:All
Roadway Types:Not specified
Street Type:
Minimum Number of Lanes:2
Maximum Number of Lanes:6
Number of Lanes Direction:
Number of Lanes Comment:
Crash Weather:Not specified
Road Division Type:
Minimum Speed Limit:30
Maximum Speed Limit:55
Speed Unit:mph
Speed Limit Comment:
Area Type:
Traffic Volume:
Average Traffic Volume:
Time of Day:All
If countermeasure is intersection-based
Intersection Type:Roadway/roadway (not interchange related)
Intersection Geometry:4-leg
Traffic Control:Signalized
Major Road Traffic Volume:Minimum of 6033 to Maximum of 57458 Annual Average Daily Traffic (AADT)
Minor Road Traffic Volume:Minimum of 567 to Maximum of 36000 Annual Average Daily Traffic (AADT)
Average Major Road Volume :28894 Annual Average Daily Traffic (AADT)
Average Minor Road Volume :11428 Annual Average Daily Traffic (AADT)
Development Details
Date Range of Data Used:2003 to 2014
Municipality:Jacksonville and Gainesville
Type of Methodology Used:Before/after using empirical Bayes or full Bayes
Sample Size (crashes):2022 crashes before, 1574 crashes after
Sample Size (sites):110 sites before, 110 sites after
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Nov 17, 2017