CMF / CRF Details
CMF ID: 6403
Change clear zone width
Description: Change the width of the clear zone, widen or narrow
Prior Condition: No obstacles within 0 to 2 meters on one or both sides of the roadway
Category: Roadside
Study: Analyzing road design risk factors for run-off-road crashes in the Netherlands with crash prediction models, van Petegem and Wegman, 2014
Star Quality Rating: | [View score details] |
Rating Points Total: | 90 |
Crash Modification Factor (CMF) | |
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Value: | 1.49 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.19 |
Crash Reduction Factor (CRF) | |
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Value: | -49 (This value indicates an increase in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 19 |
Applicability | |
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Crash Type: | Run off road |
Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
Roadway Types: | Not specified |
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: | 50 |
Maximum Speed Limit: | 50 |
Speed Unit: | mph |
Speed Limit Comment: | 80 km/h converted to 50 km/h |
Area Type: | Rural |
Traffic Volume: | Minimum of 0 to Maximum of 30000 Annual Average Daily Traffic (AADT) |
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: | 2004 to 2008 |
Municipality: | Drenthe and Gelderland |
State: | notusa |
Country: | Netherlands |
Type of Methodology Used: | Regression cross-section |
Sample Size (crashes): | 324 crashes |
Sample Size (sites): | 7347 sites |
Sample Size (site-years): | 36735 site-years |
Sample Size (miles): | 457 miles |
Sample Size (mile-years): | 2285 mile-years |