CONTROL OF OVERWEIGHT VEHICLE MOVEMENTS IN NEW ZEALAND

In 1970 the New Zealand National Roads Board (NRB), in co-operation with other road controlling authorities and interested parties, adopted a comprehensive and uniform policy for the issuing of overweight permits. Each movement by an overweight vehicle is categorised according to the severity with which road pavements and bridges are stressed, restrictions being applied according to the movement category. Since all road pavements are graded to reflect their ability to carry overweight loads, the movement category depends not only on the axle weights of the vehicle concerned but also on the grades of pavement it traverses. Bridge loading is determined on the basis of a simple rating system which can be used by clerical staff. The system is necessarily conservative and once higher levels of loading are reached, stresses must be assessed more accurately by technical staff. Depending on the level of stress calculated each bridge crossing will be unsupervised, supervised or not approved. A system involving the rapid computer analysis of bridge stresses has recently been developed, which greatly reduces the administrative effort and eases the restrictions on over-weight vehicle movements. /TRRL/

• Record URL:
  http://arrbknowledge.com
• Supplemental Notes:
  • This paper was presented at the 8th Conference of the Australian Road Research Board, Perth, Australia, August 23-27, 1976.
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Heine, D G
• Conference:
  • Australian Road Research Board Conference Proc
• Publication Date: 1976

Language

• English

Media Info

• Features: References; Tables;
• Pagination: p. 1-7
• Serial:
  • Volume: 8
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Axle load force; Bridge decks; Bridges; Computer programs; Conferences; Grading (Earthwork); Heavy vehicles; Load limits; Loads; Mathematical models; Pavement design; Pavements; Regulations; Specifications; Stresses; Traffic regulations; Vehicle weight
• Uncontrolled Terms: Grading
• Geographic Terms: New Zealand
• Old TRIS Terms: Highway pavement; Porcelain
• ITRD Terms: 3455: Bridge; 3482: Bridge deck; 8525: Conference; 1088: Inland waterway; 5567: Load; 1078: Lock (waterway); 6473: Mathematical model; 8079: New Zealand; 3055: Pavement design; 8645: Software; 177: Specifications; 1544: Traffic regulations
• Subject Areas: Bridges and other structures; Design; Highways; Law; Operations and Traffic Management; Pavements; I22: Design of Pavements, Railways and Guideways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00164174
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS, ATRI
• Created Date: Jun 28 1978 12:00AM