Road Safety Auditing is split into various stages (stages are defined by local authorities and should be available in industry guidelines).
Typical RSA stages are as follows:
Stage 1: Concept Design – Desk top audit.
Stage 2: Preliminary Design – Desk top audit.
Stage 3: Detailed Design – Desk top audit.
Stage 4: Pre-Opening (Post-Construction) – On site Audit.
Stage 5: Road Safety Assessment (Existing Road Network) – On site Audit.