CMF / CRF Details

CMF ID: 5256

Install pedestrian fencing

Description: Pedestrian fencing installed along the median of the roadway to prevent pedestrians crossing at a midblock location.

Prior Condition: Without pedestrian fencing

Category: Pedestrians

Study: Safety countermeasures and crash reduction in New York City - Experience and lessons learned, Chen et al., 2013

Star Quality Rating: 2 Stars   [View score details]
Rating Points Total: 70
Crash Modification Factor (CMF)
Value: 1.18
Adjusted Standard Error:
Unadjusted Standard Error: 0.65
Crash Reduction Factor (CRF)
Value: -18   (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 65
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:
Average Traffic Volume:
Time of Day:
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: 1989 to 2008
Municipality: New York City
State: NY
Type of Methodology Used: Other before/after
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse:
Comments: The number of crashes in the after period were not reported in this study, however, they have been recorded as 300 to give 10 points as a beneift of doubt for one or more of the following: (1) number of miles/sites in the reference/treatment group, (2) number of crashes in the references/treatment group, (3) reporting AADTs for the aggregate dataset but not for the disaggragate dataset used for CMF development.