COSTS OF PAVEMENT STRENGTHENING --HIGHWAY CONSTRUCTION & MAINTENANCE. PROCEEDINGS OF SEMINAR F HELD AT THE PTRC TRANSPORT & PLANNING SUMMER ANNUAL MEETING, BATH UNIV. ENGLAND 7-11 SEPTEMBER 1987, VOLUME P293

Cops is a method for estimating the cost of pavement strengthening based on the analysis of deflection measurements. A method for estimating the cost of pavement strengthening based on the analysis of deflectograph surveys has been developed. Homogeneous treatment lengths are identified by applying statistical techniques to overlay thickness profiles produced by the deplec computer program, which incorporates the deflection design method developed at the transport and Road Research Laboratory. The costs of various strengthening strategies are examined by considering treatments ranging from thick overlays through combinations of thinner overlays and local reconstruction to total reconstruction. Costs of a range of treatment plans are output to enable sensitivity analysis to be undertaken. The effect of traffic delays at road works have been examined although these are not an integral part of the method. Further costs are allowed for in the analysis by considering the performance of the strengthened pavement and the cost of subsequent treatments. Cops has been applied to a deflectograph survey from a three lane motorway. Minimum treatment costs show that significant savings can be achieved in comparison with current strengthening practice. A list of marginally more expensive treatment plans is also produced, which should enable a maintenance engineer to obtain the best solution taking into account factors outside the scope of the analysis such as the pavement's visual condition or results of trial pit investigations. Using the cops computer program indicated a potential for savings in manpower over current methods which rely on manual analysis. The cops method is to be included in the deflection analysis package pandef, currently being developed by the United Kingdom Department of Transport.(a) for the covering abstract of the seminar see IRRD 816254.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0860501752
• Corporate Authors:

  PTRC Education and Research Services Limited

  110 Strand
  London WC2,   England 
• Authors:
  • PYNN, J
  • Still, P
• Publication Date: 1987

Language

• English

Media Info

• Pagination: p. 193-207
• Serial:
  • Publication of: PTRC EDUCATION & RESEARCH SERVICES LIMITED
  • Publisher: PTRC Education and Research Services Limited
  • ISSN: 0266-4569

Subject/Index Terms

• TRT Terms: Computer programs; Conferences; Costs; Deflection; Durability; Freeways; Measurement; Pavement design; Pavements; Strength of materials; Structural strengthening; Thickness; Traffic; Traffic delays
• Geographic Terms: United Kingdom
• Subject Areas: Finance; Highways; Operations and Traffic Management; Pavements;

Filing Info

• Accession Number: 00483084
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 0-86050-175-2
• Files: ITRD, TRIS
• Created Date: May 31 1989 12:00AM