How a fast lane may replace a congestion toll |
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Authors: | Mogens Fosgerau |
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Institution: | Technical University of Denmark, 2800 Kgs. Lyngby, Denmark Centre for Transport Studies, Teknikringen 14, 3rd floor, S-100 44 Stockholm, Sweden Ecole Normale Supérieure de Cachan, 61 Avenue du Président Wilson, 94230 Cachan, France |
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Abstract: | This paper considers a congested bottleneck. A fast lane reserves a more than proportional share of capacity to a designated group of travelers. Travelers are otherwise identical and other travelers can use the reserved capacity when it would otherwise be idle. The paper shows that such a fast lane is always Pareto improving under Nash equilibrium in arrival times at the bottleneck and inelastic demand. It can replicate the arrival schedule and queueing outcomes of a toll that optimally charges a constant toll during part of the demand peak. Within some bounds, the fast lane scheme is still welfare improving when demand is elastic. |
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Keywords: | Congestion Tolling Bottleneck Scheduling Fast lane |
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