AUTHOR=Deka Utpal , Dilip Deepthi Mary 

TITLE=Rethinking shared mobility: analyzing the commercial sustainability of demand-responsive transport in Dubai

JOURNAL=Frontiers in Sustainable Cities

VOLUME=Volume 7 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/sustainable-cities/articles/10.3389/frsc.2025.1688672

DOI=10.3389/frsc.2025.1688672

ISSN=2624-9634

ABSTRACT=With the rapid pace of urbanization and the subsequent dominance of private vehicle usage, cities are under increasing pressure to offer sustainable alternatives to public transportation. Demand-responsive transport (DRT) systems provide flexible, technology-enabled services that bridge first- and last-mile connectivity gaps. This study assesses the operational and financial viability of Dubai's Bus-on-Demand (DBOD) service using Daganzo's continuum approximation framework, calibrated with empirical data from two service areas in Dubai. From the agency perspective, the Alternating Priorities routing strategy (i.e., alternating between nearest pickup and drop-off) was identified as optimal, balancing distance optimization with service consistency and contributing to shorter travel and waiting times. Cost efficiency is highest in compact service areas with moderate demand, with optimal vehicle occupancy of 10–15 passengers to minimize agency costs. To incorporate the user perspective, value of time (VOT) was calibrated for DBOD and integrated with agency costs. Based on the calibrated VOT, fleet size and operational parameters were optimized within a system framework. Moreover, a comparative analysis of three routing strategies across occupancy levels confirmed the superior cost-effectiveness of the Alternating Priorities approach, as implemented in DBOD. The study recommends that transit agencies refine vehicle dispatching, routing, and scheduling strategies to achieve optimal occupancy levels, and emphasizes the necessity of balancing agency and user costs for sustainable DRT implementation. These findings provide transit agencies with an empirical, data-driven framework to evaluate and optimize DRT services, supporting informed decision-making for sustainable urban mobility.