The newly developed freq10 integrated system of freeway corridorsimulation models is described with emphasis on traffic simulation, freeway improvement strategies, measures of effectiveness, and traveler responses. The major accomplishments have been to combine the previously developed entry control model, an extensively modified on-freeway priority model, and a newly developed common menu-driven interactive interface into an integrated system of models to extend thetypes of traffic management strategies that can be evaluated for a freeway corridor. The freq10 system of models enables the user to analyze design improvements, implementation of an hov facility, implementation of normal and priority entry control, or implementation of time-varying capacity reduction situations such as reconstruction activities or freeway incidents. The extensive modifications that havebeen made to the on-freeway priority model include refining the procedure for traffic simulation, adding many new features such as user-supplied emission and fuel rates, and developing a new method for modeling the arterial and spatial response to reflect current policies that hov facilities be considered as lanes added to the freeway. This system of models has received extensive testing and has been applied to freeway corridors in several urban areas in california. Thispaper appears in transportation research record no. 1320, Freeway operations, highway capacity, and traffic flow 1991.
Abstract