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|Title:||Urban expressway-arterial corridor on-line control system based on advanced traveler information system||Authors:||Meng, Q.
|Issue Date:||2007||Citation:||Meng, Q., Khoo, H.L., Cheu, R.L. (2007). Urban expressway-arterial corridor on-line control system based on advanced traveler information system. Transportation Research Record (2000) : 44-50. ScholarBank@NUS Repository. https://doi.org/10.3141/2000-06||Abstract:||A novel on-line dynamic traffic control strategy for an urban expresswayarterial corridor system is proposed. The corridor system comprises an expressway mainline, on and off-ramps, and surface streets (arterial roads). The ramps are not subjected to any ramp metering control. Assuming that the real-time vehicle arrival and departure can be obtained from the loop detectors on the expressway, the proposed traffic control strategy aims to maintain a predetermined level of service on a congested expressway section by disseminating the congestion information to drivers through various advanced traveler information system means. This strategy consists of three components: expressway mainline control (EMC), on-ramp control (OnC), and off-ramp control (OffC) mechanisms. The EMC mechanism is the major component that diverts vehicles from the expressway to the surface streets, and the OnC and OffC procedures protect the ramps and surface streets from excessive flow. This is because diverting the vehicles without taking into consideration the surface street capacity may cause the overall performance of the corridor system to deteriorate. A simulation-based modeling methodology is developed to evaluate the on-line dynamic traffic control strategy. The evaluation is carried out by performing sensitivity analysis tests of the control parameters used in the strategy. A case study based on a corridor system in Singapore has shown that the traffic control strategy is effective.||Source Title:||Transportation Research Record||URI:||http://scholarbank.nus.edu.sg/handle/10635/66361||ISBN:||9780309104265||ISSN:||03611981||DOI:||10.3141/2000-06|
|Appears in Collections:||Staff Publications|
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