Bi-level multi-objective traffic network optimisation with sustainability perspective
Kolak, Orhan İlker and Feyzioğlu, Orhan and Noyan, Nilay (2018) Bi-level multi-objective traffic network optimisation with sustainability perspective. Expert Systems with Applications, 104 . pp. 294-306. ISSN 0957-4174 (Print) 1873-6793 (Online)
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Official URL: http://dx.doi.org/10.1016/j.eswa.2018.03.034
Recent technological advancements provide a level of mobility never seen before to modern societies. Sustaining today's economy and societies depend on maintaining this mobility. However, this mobility also causes undesirable effects, especially in high urban population areas. Even though, higher priority is given to public transport in metropolitan areas, road network is still an important part of everyday com- mute and should be planned and managed with great care. In this study, we propose an optimisation methodology that would help the traffic authorities to better predict the results of strategic management decisions in a realistic traffic model. We formulate a bi-level multi-objective traffic optimisation model with a sustainability perspective. The upper level of the proposed model considers the traffic authority's management strategies while the lower level considers the traffic users' decisions. The lower level is modelled using the Stochastic User Equilibrium since it allows more realistic results than the determin- istic one. A case study is provided to illustrate the proposed model. The proposed methodology provides an avenue for understanding the trade-offs among conflicting objectives and for designing an environ- mentally and socially sustainable transportation system. More importantly, it builds the foundation for an intelligent traffic management decision support system.
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