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This study was undertaken to accomplish two objectives pertinent to traffic characteristics at toll plaza areas: (1) to develop a methodology for evaluating the capacity of a toll plaza, and (2) to establish level-of-service criteria for toll area traffic. Traffic data at the four toll plazas of Virginia's Richmond-Petersburg Turnpike were collected using synchronized video cameras. The capacity of a toll booth was found to range from 600 to 750 passenger cars per hour, depending on the type of toll collection. It was concluded that average density can be used as a criterion for defining levels of service for toll plaza areas. Average densities of the toll plaza areas were also found to be highly correlated to v/c ratios. Simulation techniques were employed with animation, which gave the viewers visual perceptions directly in addition to analytic solutions. Examples of operational analysis and planning analysis were presented to demonstrate the application. As a result of this study, it was recommended that the density criterion be utilized for defining levels of service at toll plaza areas, and that it be incorporated into a future edition of the Highway Capacity Manual.
This report analyzes the main variables affecting a toll highway project, and develops mathematical models that describe their behavior. These models can serve as a tool in the decision-making process during the planning and operation of the facility. This study focuses on the development of a toll traffic estimation model based on the attributes of the highway and the elasticity of the demand. The goal is to estimate the amount of traffic that could be diverted to the toll facility in an existing corridor with a free access road as an alternate route. Some possible methods to estimate the toll price are discussed as well as an analysis to determine the optimum toll. The Mexican experience is used as a case study to develop empirical models.