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)
- 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.