CMF / CRF Details
CMF ID: 11463
Install cable median barrier (high tension)
Description:
Prior Condition: No Prior Condition(s)
Category: Roadside
Study: Crash Modification Factors for High-Tension Cable Median Barriers in Pennsylvania, Gayah et al., 2023
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 135 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.61 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.049 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 39 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 4.9 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal), A (serious injury) |
| Roadway Types: | Principal Arterial Interstate, Principal Arterial Other Freeways and Expressways |
| Street Type: | One-Way |
| Minimum Number of Lanes: | 2 |
| Maximum Number of Lanes: | 3 |
| Number of Lanes Direction: | One Direction |
| Number of Lanes Comment: | one direction |
| Crash Weather: | All |
| Road Division Type: | Divided by Median |
| Minimum Speed Limit: | 30 |
| Maximum Speed Limit: | 70 |
| Speed Unit: | mph |
| Speed Limit Comment: | |
| Area Type: | Urban |
| Traffic Volume: | Minimum of 3474 to Maximum of 63805 Annual Average Daily Traffic (AADT) |
| Average Traffic Volume: | 16823 Annual Average Daily Traffic (AADT) |
| Time of Day: | |
| 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: | 2007 to 2021 |
| Municipality: | |
| State: | PA |
| Country: | |
| Type of Methodology Used: | |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Dec 12, 2023 |
| Comments: | CMF for one-direction freeway segments |
