Optimization of public transit network considering initial and terminal stations location requirements and passenger flow intensity(PDF)
长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]
- Issue:
- 2017年01期
- Page:
- 106-111
- Research Field:
- 交通工程
- Publishing date:
Info
- Title:
- Optimization of public transit network considering initial and terminal stations location requirements and passenger flow intensity
- Author(s):
- JIANG Yang-sheng; LUO Xiao-ling
- 1. School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 2. National United Engineering Laboratory of Integrated and Intelligent Transportation, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
- Keywords:
- traffic engineering; urban traffic; accessibility optimization; genetic algorithm; public transit network; intensity of passenger flow
- PACS:
- U491
- DOI:
- -
- Abstract:
- In order to solve the problem that existing accessibility study did not consider the quantitative relationship between accessibility and demand, and ignored the location requirements of the initial and terminal stations, this paper proposed the concepts of generalized accessibility and accessibility strength index. On this basis, an accessibility optimization model of transit network was introduced according to the planning fixed stop locations and line numbers, which took the best matching degree between demand and accessibility and the highest value of accessibility as objective and considers the location requirements of the initial and terminal stations. Genetic algorithm was proposed to solve this model, and the algorithm and model were verified through an example. The results show that the matching degree between demand and accessibility increases by 1.57% when taking the matching degree relationship between demand and accessibility into consideration. In addition, demand and accessibility of the optimized network meet the location requirements. It is indicated that the matching degree and the proportion of travel without transfer can be improved, and passengers travel can be more convenient when considering the relationship between accessibility and passenger flow when the transit network be planned. Meanwhile, according to practical location requirements of initial and terminal stations during the process of transit network planning, the constraint conditions of initial and terminal stations planning should be added, which can make the final optimized network combine with practice. The research results propose an auxiliary decisionmaking for transit network planning and optimization, which considers travel demand and the location requirements of initial and terminal stations and makes the optimized result meet the practical requirements.
Last Update: 2017-01-22