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Multi-criteria analysis of optimal signal plans using microscopic traffic models
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Traffic and Logistics. ITekn Solutions, Sweden. (ITS Lab)
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Traffic and Logistics. (ITS Lab)ORCID iD: 0000-0002-1375-9054
2014 (English)In: Transportation Research Part D: Transport and Environment, ISSN 1361-9209, E-ISSN 1879-2340, Vol. 32, 1-14 p.Article in journal (Refereed) Published
Abstract [en]

Increasing concerns on environment and natural resources, coupled with increasing demand for transport, put lots of pressure for improved efficiency and performance on transport systems worldwide. New technology nowadays enables fast innovation in transport, but it is the policy for deployment and operation with a systems perspective that often determines success. Smart traffic management has played important roles for continuous development of traffic systems especially in urban areas. There is, however, still lack of effort in current traffic management and planning practice prioritizing policy goals in environment and energy. This paper presents an application of a model-based framework to quantify environmental impacts and fuel efficiency of road traffic, and to evaluate optimal signal plans with respect not only to traffic mobility performance but also other important measures for sustainability. Microscopic traffic simulator is integrated with micro-scale emission model for estimation of emissions and fuel consumption at high resolution. A stochastic optimization engine is implemented to facilitate optimal signal planning for different policy goals, including delay, stop-and-goes, fuel economy etc. In order to enhance the validity of the modeling framework, both traffic and emission models are fine-tuned using data collected in a Chinese city. In addition, two microscopic traffic models are applied, and lead to consistent results for signal optimization. Two control schemes, fixed time and vehicle actuated, are optimized while multiple performance indexes are analyzed and compared for corresponding objectives. Solutions, representing compromise between different policies, are also obtained in the case study by optimizing an integrated performance index.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 32, 1-14 p.
Keyword [en]
Optimal signal planning, Stochastic optimization, Environmental impacts, Energy efficiency, Microscopic traffic simulation, Emission model
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-157219DOI: 10.1016/j.trd.2014.06.013ISI: 000344212600001Scopus ID: 2-s2.0-84904970956OAI: oai:DiVA.org:kth-157219DiVA: diva2:769789
Funder
Swedish Research Council, 348-2007-6398
Note

QC 20141209

Available from: 2014-12-09 Created: 2014-12-08 Last updated: 2017-12-05Bibliographically approved

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Jin, Junchen

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