CMF / CRF Details
CMF ID: 3066
Implement speed limit of 50 mph or greater
Description:
Prior Condition: No Prior Condition(s)
Category: Speed management
Study: An Empirical Bayes Model to Assess Deer-Vehicle Crash Safety in Urban Areas in Iowa, Baird et al., 2011
Star Quality Rating: | [View score details] |
Rating Points Total: | 95 |
Crash Modification Factor (CMF) | |
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Value: | 2.27 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.7 |
Crash Reduction Factor (CRF) | |
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Value: | -127 (This value indicates an increase in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 70 |
Applicability | |
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Crash Type: | All |
Crash Severity: | All |
Roadway Types: | Principal Arterial Other Freeways and Expressways |
Street Type: | |
Minimum Number of Lanes: | 2 |
Maximum Number of Lanes: | 7 |
Number of Lanes Direction: | |
Number of Lanes Comment: | |
Crash Weather: | Not specified |
Road Division Type: | |
Minimum Speed Limit: | |
Maximum Speed Limit: | 65 |
Speed Unit: | mph |
Speed Limit Comment: | Below 55 - 65 mph |
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: | 2002 to 2008 |
Municipality: | Dubuque, Iowa City, Waterloo and Cedar Falls |
State: | IA |
Country: | usa |
Type of Methodology Used: | Regression cross-section |
Sample Size (crashes): | 634 crashes |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Jul 15, 2011 |
Comments: | For deer/animal crashes. |