The UK Department for Transport (DFT) provides a traffic data set for the city of London, for 2000 to 2013.
There are two main data sets:
- AADF - Annual average daily flow
AADF figures give the number of vehicles that will drive on that stretch of road on an average day of the year. For information on how AADFs are calculated, see the guidance on the Traffic Statistics pages on GOV.UK.
AADF figures are presented as: Units = vehicles per day
- Traffic - Annual volume of traffic
Traffic figures give the total volume of traffic on the stretch of road for the whole year, and are calculated by multiplying the AADF by the corresponding length of road and by the number of days in the year (i.e. one vehicle travelling one mile each day for a year would equal 365 vehicle miles).
Traffic figures are presented as: Units = thousand vehicle miles