CMF / CRF Details
Install a traffic signal
Countermeasure ID: 9931
Description:
Prior Condition: Two- way stop-controlled
Category: Intersection traffic control
Study: Effects of Signalization at Rural Intersections Considering the Elderly Driving Population, Yue et al., 2019
| Crash Modification Factor (CMF) |
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| Value: |  |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) |
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| Value: | |
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| Unadjusted Standard Error: | |
| Applicability |
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| Crash Type: | Angle |
| 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: | Rural |
| Traffic Volume: | |
| Average Traffic Volume: | |
| Time of Day: | All |
| If countermeasure is intersection-based |
| Intersection Type: | Roadway/roadway (not interchange related) |
| Intersection Geometry: | 4-leg |
| Traffic Control: | Other |
| Major Road Traffic Volume: | |
| Minor Road Traffic Volume: | |
| Average Major Road Volume : | 4674 Annual Average Daily Traffic (AADT) |
| Average Minor Road Volume : | 1972 Annual Average Daily Traffic (AADT) |
| Development Details |
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| Date Range of Data Used: | 2011 to 2014 |
| Municipality: | |
| State: | FL |
| Country: | |
| Type of Methodology Used: | Regression cross-section |
| Sample Size (sites): | 112 sites |
| Sample Size (site-years): | 448 site-years |
| Other Details |
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| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Jul 26, 2019 |
| Comments: | This CMF is for crashes not involving elderly drivers. |
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