SOME ASPECTS OF PAVEMENT DESIGN AND PERFORMANCE FOR LOW VOLUME ROADS IN NEW ZEALAND

In defining the role of a pavement, this paper discusses the essential features, methods of design and performance with respect to flexible unsealed and thin surfaced New Zealand roads. The materials which are normally used in these pavements are identified and assessments made on material characteristics for design. By defining the two main modes of pavement deformation, namely shallow shear and deep seated (subgrade) deformation, it has been shown that stabilisation methods can be used to reduce the rate of deformation in both chip sealed and unsealed pavements. In order to limit the rate of deformation, a Modified Design Approach, which essentially incorporates both a modified subgrade and base layer into the structural pavement, has been recommended and then confirmed as far as practicable using field performance data. It is concluded that low volume roads can be constructed successfully using thin total pavement depth provided think time and stabilisation techniques are employed with the aid of appropriate design skills. /Author/

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References;
  • Pagination: pp 47-54
  • Monograph Title: Low volume roads: second international conference; proceedings, August 20-23, 1979
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00301099
  • Record Type: Publication
  • ISBN: 309028434
  • Files: TRIS, TRB
  • Created Date: Oct 17 1979 12:00AM