CMF / CRF Details
CMF ID: 8217
Change horizontal alignment
Description:
change horizontal alignment
Prior Condition: No horizontal curve
Category: Alignment
Crash Modification Factor (CMF) |
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Value: |  |
Adjusted Standard Error: | |
Unadjusted Standard Error: | |
Crash Reduction Factor (CRF) |
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Value: | |
Adjusted Standard Error: | |
Unadjusted Standard Error: | |
Applicability |
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Crash Type: | All |
Crash Severity: | All |
Roadway Types: | Principal Arterial Other |
Street Type: | |
Minimum Number of Lanes: | 2 |
Maximum Number of Lanes: | 2 |
Number of Lanes Direction: | |
Number of Lanes Comment: | |
Crash Weather: | Not specified |
Road Division Type: | Undivided |
Minimum Speed Limit: | 35 |
Maximum Speed Limit: | |
Speed Unit: | mph |
Speed Limit Comment: | > = 35 mph |
Area Type: | Urban |
Traffic Volume: | |
Average Traffic Volume: | |
Time of Day: | Not specified |
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: | 2007 to 2009 |
Municipality: | |
State: | WA |
Country: | USA |
Type of Methodology Used: | Regression cross-section |
Sample Size (sites): | 4644 sites |
Sample Size (site-years): | 13932 site-years |
Sample Size (miles): | 244.1 miles |
Sample Size (mile-years): | 732.3 mile-years |
Other Details |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Jan 17, 2017 |
Comments: | CMF applies to urban two-lane arterials with posted speed 35 mph or more and a radius less than 1,320 ft. |