Print Email Facebook Twitter Travel Time Reliability for Urban Networks Title Travel Time Reliability for Urban Networks: Modelling and Empirics Author Zheng, F. (Southwest Jiaotong University) Liu, Xiaobo (Southwest Jiaotong University) van Zuylen, H.J. (TU Delft Transport and Planning; Southwest Jiaotong University; Hunan University) Li, Jie (Hunan University) Lu, Chao (Southwest Jiaotong University) Date 2017-07-09 Abstract The importance of travel time reliability in traffic management, control, and network design has received a lot of attention in the past decade. In this paper, a network travel time distribution model based on the Johnson curve system is proposed. The model is applied to field travel time data collected by Automated Number Plate Recognition (ANPR) cameras. We further investigate the network-level travel time reliability by connecting the network reliability measures such as the weighted standard deviation of travel time rate and the weighted skewness of travel time rate distributions with network traffic characteristics (e.g., the network density). The weighting is done with respect to the number of signalized intersections on a trip. A clear linear relation between the weighted average travel time rate and the weighted standard deviation of travel time rate can be observed for different time periods with time-varying demand. Furthermore, both the weighted average travel time rate and the weighted standard deviation of travel time rate increase monotonically with network density. The empirical findings of the relation between network travel time reliability and network traffic characteristics can be possibly applied to assess traffic management and control measures to improve network travel time reliability. To reference this document use: http://resolver.tudelft.nl/uuid:57e3c192-8509-4663-b020-930efe294013 DOI https://doi.org/10.1155/2017/9147356 ISSN 0197-6729 Source Journal of Advanced Transportation, 2017 Part of collection Institutional Repository Document type journal article Rights © 2017 F. Zheng, Xiaobo Liu, H.J. van Zuylen, Jie Li, Chao Lu Files PDF 9147356.pdf 3.19 MB Close viewer /islandora/object/uuid:57e3c192-8509-4663-b020-930efe294013/datastream/OBJ/view