The limitations of measuring profiles with the GM principle at network level

A number of controlled studies of two types of traffic-speed profile measuring systems have been carried out to highlight any accuracy limitations under realistic survey conditions. In particular the effect of survey speed, survey acceleration and road geometry have been examined. The results have shown that such effects can be significant with up to 2 per cent of survey data needing to be isolated for possible inaccurate measurement due to braking effects on typical network surveys. The results also show that improved filters can reduce the effect of extreme road geometry on profile analysis so that the lengths of the network identified as having poor ride quality can be reduced by up to 30 per cent.

• Authors:
  • Wright, A
  • Ferne, B
  • Christie, C
• Conference:
  • Symposium on Pavement Surface Characteristics [of Roads and Airports], 5th, 2004, Toronto, Ontario, Canada
• Publication Date: 2004

Language

• English

Media Info

• Pagination: 12p

Subject/Index Terms

• TRT Terms: Accuracy; Braking; Geometric design; Measuring instruments; Profilometers; Ride quality; Speed; Surface course (Pavements); Traffic flow; Types of roads by network
• ATRI Terms: Accuracy; Braking; Geometric design; Measuring equipment; Profilometer; Riding quality; Road network; Road surface properties; Speed; Traffic flow
• Subject Areas: Design; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 01389582
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Aug 23 2012 3:35AM