CMF / CRF Details
CMF ID: 2992
Convert High-Occupancy-Vehicle (HOV) lanes to High-Occupancy-Toll (HOT) lanes
Description:
convert a High-Occupancy-Vehicle (HOV) interstate segment into a High-Occupancy-Toll (HOT) segment
Prior Condition: High-Occupancy-Vehicle (HOV) interstate segment
Category: Roadway
Crash Modification Factor (CMF) |
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Value: | 0.96 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | |
Crash Reduction Factor (CRF) |
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Value: | 4 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | |
Applicability |
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Crash Type: | All |
Crash Severity: | C (possible injury) |
Roadway Types: | Principal Arterial Interstate |
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: | Divided by Median |
Minimum Speed Limit: | |
Maximum Speed Limit: | |
Speed Unit: | |
Speed Limit Comment: | |
Area Type: | Urban |
Traffic Volume: | |
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 |
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Date Range of Data Used: | 1998 to 2008 |
Municipality: | Minneapolis-St. Paul |
State: | MN |
Country: | U.S.A. |
Type of Methodology Used: | Simple before/after |
Sample Size (crashes): | 349 crashes before, 168 crashes after |
Other Details |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Jul 15, 2011 |
Comments: | This CMF was derived from a comparison group study, but the method does not follow Hauer's book. Injury severity is C (possible injury). Data on traffic volumes, speed limits, and thru lanes are not provided. The authors only have crash and volume data fo |