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Evaluating the benefits and interactions of route guidance and traffic control strategies using simulation

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4 Author(s)
Rakha, H. ; Dept. of Civil Eng., Queen''s Univ., Kingston, Ont., Canada ; Van Aerde, M. ; Case, E.R. ; Ugge, A.

In order to estimate the potential benefits of route guidance and to examine the interactions between this and other traffic management studies, a simulation was performed on a representative traffic network consisting of a freeway and a parallel arterial. Different freeway and arterial incident scenarios were examined and, for each scenario, the impact of having various percentages of drivers equipped with a route guidance system was investigated. The incremental benefits of route guidance are found to be greatest for the first 20% of drivers with in-vehicle units, but further benefits continue to be obtained when the market penetration increases up to 100%. These benefits are the largest for incident scenarios, and increase with the duration of the incident. It is speculated that for normal traffic conditions only a few drivers need to reroute themselves to maintain an equilibrium assignment. However, an incident causes a greater disturbance in the equilibrium and therefore requires a greater percentage of drivers to reroute themselves before the new equilibrium can be reached.<>

Published in:

Vehicle Navigation and Information Systems Conference, 1989. Conference Record

Date of Conference:

11-13 Sept. 1989