Passenger satisfaction on the London Overground service is continuing to rise, new figures reveal.

Overall passenger satisfaction now stands at 91 per cent, according to a survey conducted by the independent rail watchdog, Passenger Focus.

This surpasses the regional average score of 80 per cent for all train operators in London and the South East, as well as the national average of 82 per cent. It is also an improvement on last year's score of 89 per cent.

Mayor of London Boris Johnson said: "London Overground continues to earn its place at the top of the satisfaction tables, reflecting our programme of continued investment in its trains and infrastructure."

Sustained investment has taken place since Transport for London took over the railway in 2007. This has resulted in a new fleet of trains, route extensions, station upgrades and raised performance levels.

London Overground's punctuality performance is also high, ranking at number two in Network Rail's table for the year to May, with 96.2 per cent of its trains arriving on time.