Perceptual structural model of vulnerability of complex commuter travel chain(PDF)
长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]
- Issue:
- 2017年06期
- Page:
- 99-104
- Research Field:
- 交通工程
- Publishing date:
Info
- Title:
- Perceptual structural model of vulnerability of complex commuter travel chain
- Author(s):
- MA Fei; LIU Fei; SUN Qi-peng; JIANG Xiao-lan; WANG Wen-lin; LI Xiao-dan
- 1. School of Economic and Management, Chang’an University, Xi’an 710064, Shaanxi, China; 2. Center of Comprehensive Transportation Economic Management, Chang’an University, Xi’an 710064, Shaanxi, China; 3. China Xi’an Satellite Control Center, Xi’an 710043, Shaanxi, China
- Keywords:
- traffic engineering; urban traffic; perceptual structural model; commuter travel chain; vulnerability
- PACS:
- U491
- DOI:
- -
- Abstract:
- In order to measure the vulnerability of complex commuter travel chain of residents and ensure the smooth, efficient and sustainable development of urban traffic, this paper introduced the concept of vulnerability for complex commuter travel chain, and gave a model of typical complex commuter travel chain system. On this basis, the influence factors of vulnerability of complex commuter travel chain were analyzed, and pre-sampling data and principal component analysis method were used to identify the main factors. Five common factors were extracted from the influence factors, namely, traffic network congestion, poor connection of public transport, difficulties of vehicle parking, information errors of traffic guidance and subjective factors. Accordingly, the measurement index system of vulnerability perception of complex commuter traffic chain was designed, and the relationship among influence factors was obtained by exploratory factor analysis. The analysis results were further verified by using the travel survey data of Xi’an residents and structural equation model. The results show that traffic network congestion and poor connection of public transport make the largest contribution to the vulnerability perception level of complex commuter travel chain (0.278 and 0.274), which are the main factors to influence the reliability of traffic chains. The influence degree of parking difficulty is at a high level (0.222), which indicates that parking difficulties are important factors restricting the robust operation of complex commuter travel chain. The influence degree of information errors of traffic guidance is low (0.144), but it can exacerbate the vulnerability of complex commuter travel chains. The influence degree of subjective factors is the lowest (0.083), which indicates that the vulnerability degree of complex commuter travel chain caused by subjective factors is not obvious.
Last Update: 2017-12-18