Effects of real-time traffic information systems on traffic performance under different network structures |
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Authors: | Xue-heng Yao F. Benjamin Zhan Yong-mei Lu Min-hua Yang |
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Affiliation: | [1]School of Geosciences and Info-Physics, Central South University, Changsha 410075, China [2]Texas Center for Geographic Information Science, Department of Geography, |
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Abstract: | The effects of real-time traffic information system (RTTIS) on traffic performance under parallel, grid and ring networks were investigated. The simulation results show that the effects of the proportion of RTTIS usage depend on the road network structures. For traffic on a parallel network, the performance of groups with and without RTTIS level is improved when the proportion of vehicles using RTTIS is greater than 0 and less than 30%, and a proportion of RTTIS usage higher than 90% would actually deteriorate the performance. For both grid and ring networks, a higher proportion of RTTIS usage always improves the performance of groups with and without RTTIS. For all three network structures, vehicles without RTTIS benefit from some proportion of RTTIS usage in a system. |
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Keywords: | real-time traffic information traffic network traffic efficiency optimization of urban traffic |
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