CMF / CRF Details

CMF ID: 7869

Convert existing barrier tollbooths to open road tolling (ORT) facility

Description: Existing barrier tollbooth facility converted to express lanes capable of collecting tolls at high-speeds (open road tolling).

Prior Condition: Roadways with traditional mainline toll plaza

Category: Advanced technology and ITS

Study: Validation and Application of Highway Safety Manual (Part D) in Florida, Abdel-Aty et al., 2014

Image: View the countermeasure image.

 
Star Quality Rating: 4 Stars   [View score details]
Rating Points Total: 110
Crash Modification Factor (CMF)
Value: 0.53
Adjusted Standard Error:
Unadjusted Standard Error: 0.05
Crash Reduction Factor (CRF)
Value: 47   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 5
Applicability
Crash Type: All
Crash Severity: All
Roadway Types: Principal Arterial Other Freeways and Expressways
Number of Lanes:
Road Division Type: Divided by Median
Speed Limit:
Area Type: Not specified
Traffic Volume:
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: 2002 to 2012
Municipality:
State: FL
Country: USA
Type of Methodology Used: 2
Sample Size (sites): 30 sites
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Mar-08-2016
Comments: CMFs of converting traditional mainline toll plaza to hybrid mainline toll plaza The number of crashes in the after period were not reported in this study, however, they have been recorded as 300 to give 10 points as a beneift of doubt for one or more of the following: (1) number of miles/sites in the reference/treatment group, (2) number of crashes in the references/treatment group, (3) reporting AADTs for the aggregate dataset but not for the disaggragate dataset used for CMF development.