CMF / CRF Details
CMF ID: 9333
Conversion of intersection into single-lane roundabout
Description: Conversion of intersection into single-lane roundabout
Prior Condition: signalized, stop-controlled, yield-controlled and non-controlled intersections
Category: Intersection geometry
Study: Safe roundabouts for cyclists, Jensen, S. U., 2017
Star Quality Rating: | [View score details] |
Rating Points Total: | 70 |
Crash Modification Factor (CMF) | |
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Value: | 0.48 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.082 |
Crash Reduction Factor (CRF) | |
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Value: | 52 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 8.2 |
Applicability | |
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Crash Type: | Other |
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: | All |
Minimum Speed Limit: | 40 |
Maximum Speed Limit: | 130 |
Speed Unit: | km/h |
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: | No values chosen. |
Traffic Control: | Not specified |
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: | |
Municipality: | |
State: | notusa |
Country: | Denmark |
Type of Methodology Used: | Before/after using comparison group |
Sample Size (crashes): | 48 crashes after |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Jun 17, 2018 |
Comments: | Crash type: all except bicycleType of bicycle facility at roundabout: Cycle track |