Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 441786
Title Traffic Responsive Control of Intersections with Predicted Arrival Times: A Markovian Approach
Author(s) Haijema, R.; Hendrix, E.M.T.
Source Computer Aided Civil and Infrastructure Engineering 29 (2014)2. - ISSN 1093-9687 - p. 123 - 139.
Department(s) Operations Research and Logistics
Publication type Refereed Article in a scientific journal
Publication year 2014
Keyword(s) signalized intersections - optimization - system - video - model - flow
Abstract The dynamic adaptive control of traffic lights can be formulated as a Markov decision problem (MDP). This framework is hardly used, as solving an MDP can be very time-consuming and is only possible for simple infrastructures with a small number of traffic flows. Nevertheless, we show that the MDP framework can be used to construct control policies that approximately minimize the long-run average waiting time at intersections. The MDP-based approach is fast and thus allows real-time use of actual information on traffic conditions, like queue lengths and the arrival times of near-future arrivals. Simulation of an isolated intersection as well as a small network shows that the new policies with arrival information improve pretimed as well as exhaustive control. The new control policies and underlying algorithms scale up well to control networks.
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