Queuing System Simulation Optimization of Subway Stair Width

Authors

Yangsheng Jiang, 1. School ofTransportation and Logistics, Southwest Jiaotong University, Chengdu 610031, Sichuan, China;;2. Key Laboratory of Comprehensive Transportation of Sichuan Province, Chengdu 610031, Sichuan, China;;3. National United Engineering Laboratory of Integrated and Intelligent Transportation, Chengdu 610031, Sichuan, China;
Juanxiu Zhu, 1. School ofTransportation and Logistics, Southwest Jiaotong University, Chengdu 610031, Sichuan, China;;2. Key Laboratory of Comprehensive Transportation of Sichuan Province, Chengdu 610031, Sichuan, China;;3. National United Engineering Laboratory of Integrated and Intelligent Transportation, Chengdu 610031, Sichuan, China;
Hu Lu, 1. School ofTransportation and Logistics, Southwest Jiaotong University, Chengdu 610031, Sichuan, China;;2. Key Laboratory of Comprehensive Transportation of Sichuan Province, Chengdu 610031, Sichuan, China;;3. National United Engineering Laboratory of Integrated and Intelligent Transportation, Chengdu 610031, Sichuan, China;
Shifan Han, 1. School ofTransportation and Logistics, Southwest Jiaotong University, Chengdu 610031, Sichuan, China;;2. Key Laboratory of Comprehensive Transportation of Sichuan Province, Chengdu 610031, Sichuan, China;;3. National United Engineering Laboratory of Integrated and Intelligent Transportation, Chengdu 610031, Sichuan, China;

Abstract

Abstract: Subway stair and passenger flow are described as a G/G(n, φ)/C/C state-dependent queuing system with a general random arrival interval and the general random service time that depends on the passengers number n and stair gradient φ. Simulation model of the queuing system was designed and optimization algorithm was developed. Thus, a new optimization method based on queuing system simulation for subway stair width was proposed. The simulation optimization method, the M/G(n)/C/C, and the D/D/1/C queuing model (the existing design code) were compared. The results show that: the stair widths of the proposed method are larger than those of the other two methods and satisfy the desired level of service under various passenger flows, while widths of the other two methods fail to meet the requirement in most cases; the new method brings significant improvement in performance measures and has high elasticity coefficient of performance measures.

Recommended Citation

Jiang, Yangsheng; Zhu, Juanxiu; Lu, Hu; and Han, Shifan (2020) "Queuing System Simulation Optimization of Subway Stair Width," Journal of System Simulation: Vol. 28: Iss. 1, Article 18.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss1/18

First Page

129

Revised Date

2015-01-16

DOI Link

https://doi.org/

Last Page

138

CLC

U291.69

Recommended Citation

Jiang Yangsheng, Zhu Juanxiu, Hu Lu, Han Shifan. Queuing System Simulation Optimization of Subway Stair Width[J]. Journal of System Simulation, 2016, 28(1): 129-138.