Abstract:
The Risk Assessment Procedure for South Africa (RAPSA) model, developed to enhance
road safety prioritization, integrates insights from the Netsafe Accident Prediction Model
and the South African Road Restraint Systems Manual (SARRSM). In its draft stage,
RAPSA offers a framework for engineers to estimate accident rates and assess benefit-to-
cost ratios related to Road Restraint Systems (RRS). Emphasizing the importance of
expert judgment, RAPSA underscores the significance of enhancing restraint systems to
safeguard road users. By providing engineers with data-driven insights, RAPSA facilitates
informed decision-making, ensuring the optimal selection and implementation of RRS for
enhanced safety and cost efficiency on South African roads. The model was used to
assess a section of the Nation Route 10 – Olifantskop Pass.
