United States Department of Transportation
i
Development of Safety Performance Functions for Restricted Crossing U-Turn (RCUT) Intersections
-
2019-05-01
-
[PDF-11.55 MB]
Details:
-
Alternative Title:Development of Safety Performance Functions for Restricted Crossing U-Turn (RCUT) Intersections: Task 6: Final Report
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Edition:Final Report, Period Covered: 02/07/2017-05/31/2019
-
Contracting Officer:
-
Corporate Publisher:
-
Abstract:Conventional intersection designs are known to be problematic and unreliable when handling the complexity associated with the heavy traffic volume and travel demand on today’s roadways. Therefore, transportation agencies have been searching for more innovative and safer intersection design solutions in order to address these complex problems. One such alternative intersection design is the restricted crossing U-turn (RCUT) intersection. The overall goal of this project was to provide appropriate safety performance functions for different types of RCUT intersections for use by FDOT planners and engineers at various levels of project development and safety analysis. Consistent with this goal, the following tasks have been completed as part of the project: (a) a comprehensive search was performed to identify the experiences of other transportation agencies (federal and state agencies, cities, counties, MPOs and other local agencies) related to the RCUT implementations; (b) a survey questionnaire was prepared and used to solicit information on RCUT intersections from these agencies; (c) geometric, traffic, and crash data were collected for all the existing RCUT intersections in the U.S.; (d) significant factors influencing the RCUT intersection safety were determined; (e) safety performance functions (SPFs) were developed for signalized and unsignalized RCUT intersections based on the collected data; and (f) crash modification factors and functions (CMFs) were developed for various traffic and geometric variables. Meeting these objectives led to appropriate recommendations to Florida DOT in terms of evaluating and justifying the feasibility of RCUT intersections as safer intersection alternatives and identifying promising locations in Florida where intersection safety and operation will be significantly improved (those locations that may benefit the most from RCUT implementations). Results of this research will also be used with the new Intersection Control Evaluation (ICE) Policy and Procedure, and RCUT Safety Performance Functions (SPFs) will be incorporated into the Safety Performance for ICE (SPICE) Tool.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
