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Abstract
A bandwidth approach to arterial signal optimisation with bus priority is proposed in this paper. This approach can generate green bands for both bus systems and general vehicles with the same timing plan. First, the characteristics of the bus green band and the general vehicle green band and the relationships between the bus green band and the general vehicle green band are analysed to construct the basic linear constraints of the models. Second, the elements of bus systems are adjusted to expand the feasible region of the models. The maximum and minimum values of some decision variables are established to satisfy the demands of bus systems and general vehicles. Finally, a case study is presented to illustrate the application of the proposed approach with VISSIM simulations. The results show that the proposed approach generated significant improvements for bus systems, general vehicles and the entire traffic system.
Acknowledgements
The authors appreciate the comprehensive data supplied by colleagues in the School of Transportation. The authors are also grateful to the anonymous referees for suggestions to improve the paper.
Funding
This research is supported by the National High Technology Research and Development Program of China [2014AA110303] and Scientific Research Foundation of Graduate School of Southeast University [3221004942].