Matches in DBpedia 2016-04 for { <http://www.nao.org.uk/publications/nao_reports/04-05/040515.pdf> ?p ?o }
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- 040515.pdf accessdate "2009-09-17".
- 040515.pdf date "2004-11-26".
- 040515.pdf format "PDF".
- 040515.pdf isCitedBy Intelligent_transportation_system.
- 040515.pdf isCitedBy Speed_limit.
- 040515.pdf page "21".
- 040515.pdf publisher National_Audit_Office_(United_Kingdom).
- 040515.pdf quote "The initial results of the one year trial of Variable Speed Limits indicated savings in journey times, smoother flowing traffic and a fall in the number of accidents. On the basis of these findings, the Agency converted the trial into a permanent facility in 1997. Variable Speed Limits have generally been popular with road users who have reported perceived benefits, including less congestion and less stressful journeys. Yet the Agency could not prove a business case to use the measure elsewhere. Conditions at the site of the Variable Speed Limits trial were not stable before or during the trial, or in the period of extended monitoring that followed it. Traffic volumes changed and the Agency introduced new technology and new lighting and widened the motorway at both ends of the trial site, preventing it from establishing properly controlled and reliable "before and after" data to assess the measure’s impact. Without reliable data, the Agency could not prove a business case to use the measure elsewhere. As a result, in 2002 the Agency extended the Variable Speed Limits trial, at a further budgeted cost of £3.9 million, to cover an additional eight kilometres of the M25, where conditions were expected to be more stable, in order to collect sufficient before and after data to prepare a business case.".
- 040515.pdf title "Report : Tackling congestion by making better use of England's motorways and trunk roads".
- 040515.pdf url 040515.pdf.