CMF / CRF Details
Implement automated speed enforcement cameras
Countermeasure ID: 11487
Description:
Prior Condition: No Prior Condition(s)
Category: Advanced technology and ITS
Study: Safety Impact of Automated Speed Camera Enforcement: Empirical Findings Based on Chicago’s Speed Cameras, Tilahun, 2023
Crash Modification Factor (CMF) |
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Value: | 0.914 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.044 |
Crash Reduction Factor (CRF) |
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Value: | 8.6 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 4.4 |
Applicability |
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Crash Type: | All |
Crash Severity: | B (minor injury) |
Roadway Types: | Not specified |
Street Type: | Not Specified |
Minimum Number of Lanes: | |
Maximum Number of Lanes: | |
Number of Lanes Direction: | |
Number of Lanes Comment: | |
Crash Weather: | Not specified |
Road Division Type: | |
Minimum Speed Limit: | 25 |
Maximum Speed Limit: | 35 |
Speed Unit: | mph |
Speed Limit Comment: | |
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: | 2010 to 2017 |
Municipality: | Chicago |
State: | IL |
Country: | |
Type of Methodology Used: | |
Other Details |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Dec 12, 2023 |
Comments: | |