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The Department for Transport (DFT) produces traffic estimates using data from manual counts, where trained enumerators count traffic on a specific section of the road network over a 12 hour period.Major roads, such as the A223, are represented by a series of links, which are unique sections of road. It is not possible to count every link every year; therefore the sections of road are surveyed on either an annual basis or on a cycle of every two, four or eight years.A table providing the latest available 12 hourly data for each section of the A223 in the Orpington constituency has been deposited in the Libraries of the House.DFT produces an estimate of the average number of vehicles passing a point in the road network on an average day of the given year (AADF).A table providing the estimated annual average daily flows (AADFs) between 2000 and 2010 for each section of the A223 in the Orpington constituency has been deposited in the Libraries of the House. These data are not available by hourly breakdown.A map showing the location of the three count points on the A223 in the Orpington constituency has also been deposited in the Libraries of the House. |