Operational cost and user performance analysis of on-demand bus and taxi systems

This paper presents the optimization problem of three different on-demand transit systems operated by vehicles of different sizes. This problem is aimed at minimizing the total cost of the system, which consists of the temporal cost experienced by users and the operating cost incurred by transit age...

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Bibliographic Details
Authors: Estrada Romeu, Miguel Ángel|||0000-0002-5114-7796, Salanova Grau, Josep Maria, Medina Tapia, Marcos|||0000-0002-3961-5075, Robusté Antón, Francesc|||0000-0001-9433-5386
Format: article
Publication Date:2021
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/341839
Online Access:https://hdl.handle.net/2117/341839
https://dx.doi.org/10.1080/19427867.2020.1861507
Access Level:Open access
Keyword:Urban transportation--Management
On-demand transit services
Public transport
Flexible routes
Demand-responsive transport
Bus services
Taxis
Transport urbà
Àrees temàtiques de la UPC::Enginyeria civil::Infraestructures i modelització dels transports::Transport urbà
Description
Summary:This paper presents the optimization problem of three different on-demand transit systems operated by vehicles of different sizes. This problem is aimed at minimizing the total cost of the system, which consists of the temporal cost experienced by users and the operating cost incurred by transit agencies. A compact set of estimations of the user performance and operating cost is provided, based on geometric probability. The optimization procedure allows the cost comparison of different semi-flexible services. Transit systems operated by cars (shared taxicabs) with flexible layouts are preferable for low demand densities (less than 92 pax/km2-h). For very high demand (higher than 200 pax/km2-h), bus systems with fixed layout and variable stop locations present the lowest total cost per passenger. In an intermediate domain, taxi and semi-flexible services compete among each other. The estimation of unit operating costs allows decision-makers to calculate the subsidies needed to make the system profitable.