Evaluation of Freeway Improvement Alternatives Using CORFLO

by Charles C. Liu, AEPCO, Inc, McLean, United States,
Ammar Kanaan, AEPCO, Inc, McLean, United States,

Document Type: Proceeding Paper

Part of: Microcomputers in Transportation


This paper describes the application of the CORFLO simulation model on a section of the I-70 freeway in Columbus, Ohio. CORFLO is an integrated traffic simulation system for corridors and is a part of the TRAF system developed by the Federal Highway Administration. This paper provides a brief summary of the CORFLO components, discusses issues related to the selection and use of these components based on the analysis to be undertaken, provides insights on model coding and documents the validation and simulation results for the studied freeway section. Several model shortcomings (e.g. automatic interfacing between freeways and surface streets) identified during the study are also discussed and the subsequent enhancements to CORFLO described. The paper concludes with a list of recommendations for future freeway modelling efforts with CORFLO.

Subject Headings: Computer models | Traffic models | Simulation models | Highway and road management | Highways and roads | Highway engineering | Highway and road design | Ohio | United States

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