Table of Contents

2.3.4 Detailed Design Stage

The detailed design stage of the process involves the preparation of all detailed drawings and specifications required for construction of the project, including those relating to:

  • alignment (horizontal and vertical)
  • cross-section
  • drainage
  • pavement
  • barriers
  • landscaping
  • signs and markings
  • road lighting
  • traffic signals
  • incident management
  • cyclist and pedestrian facilities
  • noise walls
  • emergency stopping bays
  • utility plant and equipment.

In some cases designs may be required for special features such as run-off treatment, geotechnical treatments and service centres within the interchange.