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The following tables show morning peak period speeds across the 10 largest urban areas in England in 2004 and 2006, based on surveys conducted by the Department and Transport for London:
|Miles per hour|
|(1) Surveys are run over three years for the three areas of London, beginning with the central area and ending with the outer area.|
|Miles per hour|
The 10 largest urban areas set congestion targets as part of the Department's urban congestion PSA indicator, using a new, more detailed data source. The following table shows the first report of progress towards these targets, in terms of the percentage change in person journey time per mile from the baseline(1) to 2006-07 (percentage increases reflect slower journey times).
(1) The baseline is a mix of 2004-05 and 2005-06 data. Comparable data before the baseline are not available.
|Change in person journey times (progress to 2006-07)||-3.5||-3.4||-4.3||-3.0||-1.0||-2.3||2.2||-0.4||-1.3||1.6||-2.4|
|Change in person journey times (2010-11 target)||1.5||0.0||5.1||7.6||7.0||5.0||7.0||14.0||6.25||10.5||3.6|
| Notes: |
1. LO London, GM Greater Manchester, ME Merseyside, SY South Yorkshire, TW Tyne and Wear, WM West Midlands, WY West Yorkshire, BR Bristol, LE Leicester, NO Nottingham
2. The percentage changes of less than 2 per cent. are unlikely to be statistically significant; that is not necessarily indicative of real changes in congestion.
The urban congestion indicator covers key routes in each urban area (mainly principal A roads) during the weekday morning peak, excluding school holidays. Congestion in urban areas is measured by "person journey time per mile". Person journey times per mile are the average journey times per mile experienced by individual road users, rather than the vehicle average. These take into account average vehicle journey times, average vehicle occupancies and the number of vehicles on the route segment (vehicle flow). Figures are based on the academic year (September to August).
The data in the aforementioned table was published in the 2008 Departmental Annual Report, Annex D, available at: