4.2 Selecting the procedure

4.2 Selecting the procedure

Introduction

Land Transport New Zealand has developed separate simplified procedures for evaluating the different types of road projects.

Selecting the appropriate procedure

If the project is a: Use
Road renewal, namely:
  • pavement rehabilitation
  • drainage renewals
  • seal widening
  • preventive maintenance.
Geometric improvements are excluded.
No cost limit applies. 		SP1
Structural bridge replacement or renewal, where the:
  1. undiscounted cost is ≤ $500,000 and the AADT is ≥ 50 vpd
  2. undiscounted cost is ≤ $200,000, the AADT is ≤ 50 vpd and a ford is not a suitable option
  3. undiscounted cost of providing a suitable concrete ford is ≥ $30,000 cheaper than providing a replacement bridge and the AADT is ≤ 50 vpd.
A decision chart is provided in SP2 to assist selection of the appropriate procedure. 		SP2
General road improvement, where undiscounted cost is $500,000. SP3
Seal extension no cost limit applies. SP4
Isolated intersection improvement where the undiscounted cost is $250,000. SP5