Detailed Design audits assess the design at a stage when the major conceptual and layout decisions have already been made. They reassess the road design aspects as done in the Preliminary audit, but focus on the final details such as barrier terminations, correct type and placement of signs, batter slopes and table drain profiles, pedestrian facilities, drainage, roadside objects, signals and so on.
Site inspections are also undertaken at this stage if they have not already been undertaken at the preliminary stage.
Why undertake a Detailed Design Stage Audit?
- It is the last chance to make alterations to plans before construction where the cost of changes dramatically increases
- Check the signing and linemarking
- Check that all the details of the road furniture work together and connect well to the conditions of the existing road
- Check that all road users have been considered
Guard rail too short.
Departure side of a T-intersection over a steep crest.