CMF / CRF Details
CMF ID: 176
Install raised median with unmarked crosswalk (uncontrolled)
Description:
Prior Condition: Unmarked crosswalk with no raised median at an uncontrolled pedestrian crossing.
Category: Pedestrians
Study: Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations: Executive Summary and Recommended Guidelines, Zegeer et al., 2002
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 70 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.61 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.4 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 39 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 40 |
| Applicability | |
|---|---|
| Crash Type: | Vehicle/pedestrian |
| Crash Severity: | All |
| Roadway Types: | Principal Arterial Other |
| Street Type: | |
| Minimum Number of Lanes: | 3 |
| Maximum Number of Lanes: | 8 |
| 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: | Minimum of 15000 Average Daily Traffic (ADT) |
| Average Traffic Volume: | |
| 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: | 1994 to 1998 |
| Municipality: | |
| State: | AZ,CA,FL,KS,LA,MD,MA,MO,NC,OH,OR,PA,TX,UT,WA,WI |
| Country: | USA |
| Type of Methodology Used: | Non-regression cross-section |
| Sample Size (crashes): | 9 crashes |
