01856642

Component

https://doi.org/10.1177/03611981221113570

Direct connectivity, the main principle of developing the Interstate highway system, is of reduced importance for track-based transport networks. Ultra-speed, enabled by innovative technologies, can transport passengers via indirect links fast enough that certain direct links can be strategically removed to achieve cost savings while maintaining target transit times. Few studies have investigated such network benefits associated with ultra-speed technologies, and the relationship of vehicle speed, track length, and travel time savings is not well understood. Therefore, this article quantifies the relationship by studying potential transport networks using a case study in the American Midwest. A graph-theory-based heuristic algorithm is proposed to generate the optimal network and a set of scenarios are analyzed to test the sensitivity of network benefits to speed. Results show that ultra-speed can reduce the total length of the transport network by almost 50% while offering over 50% travel time reduction. This first attempt at quantifying the network benefits sheds light on transport network planning and infrastructure project development by mitigating the problems of capital cost and land acquisition.

Dapeng Zhang https://orcid.org/0000-0001-9616-8059© National Academy of Sciences: Transportation Research Board 2022.

English

0000-0001-9616-8059

pp 95-103

2023-3

Transportation Research Record: Journal of the Transportation Research Board

Web

References (26)

Algorithms; Graph theory; Heuristic methods; Mathematical models; Network analysis (Planning); Railroad rails

Midwest United States

Planning and Forecasting; Railroads

TRIS, TRB, ATRI

Aug 26 2022 3:35PM