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论文类型：期刊论文

发表时间：2022-06-29

发表刊物：交通运输系统工程与信息

所属单位：建设工程学部

期号：5

页面范围：89-95

ISSN号：1009-6744

摘要：To reduce vehicle delays and traffic emissions, a method of calibrating the emission factors during red and green for a signalized intersection is proposed on the basis of vehicle specific power. According to operations research and traffic flow theory, the optimization model of signal timing is presented for an isolated intersection. The objectives of the model are to minimize the vehicle delays and traffic emissions. Considering the three pollutants of CO, HC and NOx in car exhaust, traffic simulation experiments are designed using the VISSIM software, the algorithms of calibrating the model parameters and solving the optimization models are programmed using the MATLAB software. In view of the vehicle running data, two categories of emission factors for each lane group and each pollutant are both calibrated, and the proposed bi-objective signal timing optimization model is validated. The results show that, compared with only minimizing the vehicle delays, the optimal signal timing scheme obtained by the bi-objective optimization model makes the average delay per vehicle and traffic emissions decrease by 19%and 11%, respectively. The research can effectively decrease vehicle delays and emissions for an intersection and provide a theoretical basis for developing the arterial signal timing optimization models with the concern of traffic emissions.

备注：新增回溯数据