How Transit Fares Are Set and Why Transit Is Subsidised

Why most public transport systems do not cover their costs from fares, how fares are designed, and the debate over free public transport.

In most cities, bus and train fares cover only part of the cost of running public transport. The share of operating costs covered by fares is called the farebox recovery ratio. In many European and North American systems, fares cover somewhere between a fifth and a half of operating costs, though some Asian systems, such as Hong Kong’s MTR, cover their costs through fares and property development.

Why governments subsidise transit

Economists give several reasons for public subsidy:

Reducing congestion and pollution: each person on a bus or train is one fewer car on the road, benefiting drivers and residents who never use transit.
Economies of scale: more riders allow more frequent service, which attracts even more riders. A subsidy can help reach this virtuous circle.
Access to jobs and services: transit connects people without cars, including many low-income, young, older and disabled people.
Network benefits: a good network supports dense, productive city centres.

Designing fares

Fare design involves trade-offs. Flat fares are simple, while distance-based fares are fairer to short-distance travellers. Peak pricing, charging more at rush hour, can spread demand. Discounts for students, older people and disabled people are common. Daily and monthly caps limit what frequent riders pay.

Free public transport

Some places have made public transport free. Luxembourg became the first country to make all public transport free nationwide in 2020. Delhi introduced free bus travel for women on government buses in 2019. Supporters argue free transit increases ridership and helps low-income people. Critics argue the money might be better spent on more frequent and reliable services, since research suggests many riders care more about frequency and reliability than price.

Tallinn's experiment

Estonia's capital, Tallinn, made public transport free for registered residents in 2013. Studies found ridership rose, but much of the increase came from people who previously walked rather than drove, so the effect on car traffic was smaller than hoped. The city also gained revenue as more people registered as residents to get free rides.

Judging transit only by whether fares cover costs

A transit system that does not cover its costs from fares is not necessarily failing, just as roads are not judged by whether they make a profit. The right question is whether its total benefits, including less congestion, cleaner air and access to jobs, justify the public money spent.

Key takeaways

Fares cover only part of public transport's operating costs in most cities.
Subsidies are justified by reduced congestion and pollution, economies of scale and access to jobs.
Fare design balances simplicity, fairness and managing peak demand.
Free transit raises ridership, but frequency and reliability often matter more to riders.