Traffic jams in London are getting worse according to new figures released by the traffic information company Inrix.
Last year UK drivers on average wasted a total of 30 hours in jams, up one hour on 2012's figure.
The biggest increase came in the London commuter zone, rising from 72 hours in 2012 to 82 hours last year.
London ranked second only to Brussels in a list of the 25 most congested cities in Europe. The Belgian capital was marginally worse with 83 hours lost to sitting in congestion last year.
The A4 in the afternoon peak between central London and junction three of the M4 near Heathrow was named the most congested road in the UK, with 91 hours lost to delays.
The M4 heading in the opposite direction was the second most congested road, with 73 hours spent stuck in jams.
All of the top 10 worst roads were in London and all saw the most congested periods in the afternoon.
Nine of the 18 cities analysed by Inrix showed more severe congestion in 2013 than in 2012.
Greater Manchester, Merseyside, South Nottinghamshire and Greater Birmingham rounded up the top five worse areas to be stuck in traffic in the UK.
Greater Manchester was also named 12th in the European list of most congested cities.
Copyright Press Association 2014