CMF / CRF Details
CMF ID: 11234
Implement transit signal priority
Description:
Transit signal priority (TSP) is a type of transit preferential treatment implemented at signalized intersections to reduce (bus or urban rail) transit delays by providing extended or early green time 3 to transit vehicles in operation.
Prior Condition: Transit Corridors without Transit Signal Priority
Category: Transit
| Crash Modification Factor (CMF) |
|---|
| Value: | 0.92 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) |
|---|
| Value: | 8 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Applicability |
|---|
| Crash Type: | All |
| Crash Severity: | O (property damage only) |
| Roadway Types: | All |
| Street Type: | Two-Way |
| Minimum Number of Lanes: | |
| Maximum Number of Lanes: | |
| Number of Lanes Direction: | Both Directions |
| Number of Lanes Comment: | |
| Crash Weather: | Not specified |
| Road Division Type: | |
| Minimum Speed Limit: | |
| Maximum Speed Limit: | |
| Speed Unit: | mph |
| Speed Limit Comment: | |
| Area Type: | Urban and suburban |
| Traffic Volume: | Minimum of 1600 to Maximum of 41000 Annual Average Daily Traffic (AADT) |
| Average Traffic Volume: | 20461 Annual Average Daily Traffic (AADT) |
| 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 |
|---|
| Date Range of Data Used: | 2014 to 2018 |
| Municipality: | Seminole County and Orange County |
| State: | FL |
| Country: | USA |
| Type of Methodology Used: | |
| Other Details |
|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Dec 06, 2022 |
| Comments: | The number of Crashes by Year for Treatment Corridors is presented in Table 3 in the paper. However, there is no information regarding the Before and After periods for each Treatment Corridor leading to the number of crashes in the Before and After being recorded as unknown. The AADT data presented here is for the Year 2018 (also available in Table 3 in the paper). |
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