CMF / CRF Details
CMF ID: 4842
Change in average horizontal curve radius from X to Y (in miles)
Description: Change in average horizontal curve radius on rural two-lane highways from X to Y (in miles)
Prior Condition: average horizontal curve radius X (in miles)
Category: Alignment
Study: Efficacies of roadway safety improvements across functional subclasses of rural two-lane highways, Labi, 2011
Star Quality Rating: | [View score details] |
Rating Points Total: | 40 |
Crash Modification Factor (CMF) | |
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Value: | |
Adjusted Standard Error: | |
Unadjusted Standard Error: |
Crash Reduction Factor (CRF) | |
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Unadjusted Standard Error: |
Applicability | |
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Crash Type: | All |
Crash Severity: | O (property damage only) |
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: | |
Maximum Speed Limit: | |
Speed Unit: | |
Speed Limit Comment: | |
Area Type: | Rural |
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: | 1997 to 2000 |
Municipality: | |
State: | IN |
Country: | |
Type of Methodology Used: | Regression cross-section |
Sample Size (site-years): | 2160 site-years |