TY - JOUR
T1 - Maximizing space-time accessibility in multi-modal transit networks
T2 - an activity-based approach
AU - Fu, Xiao
AU - Lam, William H.K.
AU - Chen, Bi Yu
AU - Liu, Zhiyuan
PY - 2020
Y1 - 2020
N2 - Over the past decades, the impact of transport operating strategy improvements on space-time accessibility, which is an important research area for network design problem, has not been explicitly investigated particularly with the use of activity-based approach. In this paper, a novel activity-based space-time accessibility measure is introduced for considering individuals’ accessibility to various activities and travels in a unified super-network framework. A bi-level programming model is proposed for optimizing time-dependent transit line headways and fares in a multi-modal transit network from the activity-based space-time accessibility perspective. In the upper level, transit line headways and fares are optimized by time of day to maximize the network-wide activity-based space-time accessibility. At the lower level, an activity-based network equilibrium model is adapted to provide the resultant activity-travel patterns as reactions to the upper level decision. A simplified network in Hong Kong selected area is used to illustrate the application of the proposed model.
AB - Over the past decades, the impact of transport operating strategy improvements on space-time accessibility, which is an important research area for network design problem, has not been explicitly investigated particularly with the use of activity-based approach. In this paper, a novel activity-based space-time accessibility measure is introduced for considering individuals’ accessibility to various activities and travels in a unified super-network framework. A bi-level programming model is proposed for optimizing time-dependent transit line headways and fares in a multi-modal transit network from the activity-based space-time accessibility perspective. In the upper level, transit line headways and fares are optimized by time of day to maximize the network-wide activity-based space-time accessibility. At the lower level, an activity-based network equilibrium model is adapted to provide the resultant activity-travel patterns as reactions to the upper level decision. A simplified network in Hong Kong selected area is used to illustrate the application of the proposed model.
KW - activity-based approach
KW - bi-level programming model
KW - daily activity-travel pattern
KW - Space-time accessibility
UR - http://www.scopus.com/inward/record.url?scp=85089570158&partnerID=8YFLogxK
U2 - 10.1080/23249935.2020.1806372
DO - 10.1080/23249935.2020.1806372
M3 - Journal article
AN - SCOPUS:85089570158
JO - Transportmetrica A: Transport Science
JF - Transportmetrica A: Transport Science
SN - 2324-9935
ER -