Some of the tracks were recorded at normal speed and some were recorded at half speed.

VOA: special.2009.09.27

She said it wasn't clear if the trains involved in the accident carried devices that recorded speed and other data.

CNN: Six killed in Washington-area Metro train collision

Before Brady, the previous highest recorded speed in a car to result in a conviction was 156mph, by Aberdeen car dealer Jason McAllister.

BBC: NEWS | UK | England | Police search for '176mph biker'

The council also said its speed checks recorded an average speed of 27.2mph in the 30mph zone.

BBC: Large 30mph speed sign painted on house in Bow, Devon