CMF / CRF Details
Install Intersection Safety Devices
Countermeasure ID: 11088
Description: Intersection Safety Devices (ISD) combine red-light running enforcement and speed enforcement at intersections.
Prior Condition: Intersections with No Intersection Safety Devices
Category: Advanced technology and ITS
Study: Lesson Learned from the Application of Intersection Safety Devices in Edmonton, Contini and El-Basyouny, 2016
| Crash Modification Factor (CMF) |
|---|
| Value: | 0.884 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.035 |
| Crash Reduction Factor (CRF) |
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| Value: | 11.55 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 3.53 |
| Applicability |
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| Crash Type: | All |
| Crash Severity: | All |
| Roadway Types: | Not specified |
| Street Type: | |
| 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: | |
| Maximum Speed Limit: | |
| Speed Unit: | |
| Speed Limit Comment: | |
| Area Type: | Urban and suburban |
| Traffic Volume: | |
| Average Traffic Volume: | |
| Time of Day: | All |
| If countermeasure is intersection-based |
| Intersection Type: | Roadway/roadway (not interchange related) |
| Intersection Geometry: | 3-leg,4-leg |
| Traffic Control: | Signalized |
| 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: | 2006 to 2013 |
| Municipality: | Edmonton |
| State: | AB |
| Country: | Canada |
| Type of Methodology Used: | |
| Other Details |
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| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Mar 16, 2022 |
| Comments: | This is an Approach Level CMF for all Approaches with Intersection Safety Devices. |
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