Real-time congestion pricing strategies for toll facilities |
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| Institution: | 1. Department of Transportation and Logistics Management, National Chiao Tung University, Hsinchu, 300, Taiwan;2. School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287, USA;3. State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, 100044, China;4. School of Civil Engineering, Purdue University, West Lafayette, IN, 47907, USA;5. Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, 27695-7908, USA |
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| Abstract: | This paper analyzes the dynamic traffic assignment problem on a two-alternative network with one alternative subject to a dynamic pricing that responds to real-time arrivals in a system optimal way. Analytical expressions for the assignment, revenue and total delay in each alternative are derived as a function of the pricing strategy. It is found that minimum total system delay can be achieved with many different pricing strategies. This gives flexibility to operators to allocate congestion to either alternative according to their specific objective while maintaining the same minimum total system delay. Given a specific objective, the optimal pricing strategy can be determined by finding a single parameter value in the case of HOT lanes. Maximum revenue is achieved by keeping the toll facility at capacity with no queues for as long as possible. Guidelines for implementation are discussed. |
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| Keywords: | System optimum User equilibrium Congestion pricing |
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