Mass Transit Pricing and Fare Caps in Bangkok: National Politics, Urban Economics, and International Comparisons

Abstract

Thailand’s Pheu Thai-led national government had planned to cap Bangkok’s mass transit train fares at 20 baht for Thai citizens, beginning in October or November of 2025. The plan expands on a 2023 fare cap for some trains, and on then-Prime Minister Thaksin Shinawatra’s transit proposals from 2005-2006. Thus, the fare cap has been discussed for decades, and it resembles other Thaksin-era initiatives in offering a simple benefit for lower-income voters. Comparing normal transit fares and income measures across East Asia shows that there is merit to some fare reform: Bangkok’s train fares are among the highest in Asia, both in absolute terms and relative to the wages of the poorest residents, which hinders workers’ mobility. However, Bangkok’s transit system also remains underdeveloped compared to other major cities in Asia, with as much as a third of Bangkok’s population lacking easy access to mass transit trains. Lowering fares would have limited equity benefits for most residents, would not lead to stable transit revenues, and would likely make further transit expansion less affordable. Raising minimum fares, while reducing fares for some lines and interchanges, could improve Bangkok’s transportation and regional economy, while sustaining the transit system’s finances.