The average price of a single ticket on transport in London costs £2.83 ($4.07). Deyan Georgiev/Shutterstock The city with the most expensive public transport in the world has been revealed — and it isn't London.

Copenhagen has the highest average price of a single ticket on a bus, tram, or subway, costing £3.25 ($4.68). The second-most-expensive city is Stockholm, where a single ticket costs £2.93 ($4.22), followed by London, where a ticket costs £2.83 ($4.07).

This chart, from Statista, shows the average price of a single ticket in several cities, varying from £1.93 ($2.78) to £3.25 ($4.68) in 2015.

New York City had the cheapest public-transport network of the cities listed, with a single trip costing £1.93 ($2.78) on average.

Tickets cost £2.02 ($2.91) in the second-cheapest city, Helsinki, while in Berlin, the third-cheapest city, they cost £2.03 ($2.92).

Previous research concluded that London had the highest public-transport fares.

Official figures have also found that driving a car has continued to become significantly cheaper at the expense of bus and rail passengers.

From 1980 to 2014, the cost of motoring fell by 14%, but bus fares increased by 58%. Rail travel also became dramatically more expensive, with comparable ticket prices rising by 63%.

Research has shown, however, that people looking to lose weight should take public transport to benefit from the "incidental" physical activity involved.