Explanation
(D) To evaluate road and traffic control system.
The primary objective of a Road Safety Audit is to evaluate the safety performance of a road or highway and its associated traffic control systems. It aims to identify potential hazards, assess risks, and recommend appropriate measures to enhance road safety. The focus is on assessing the infrastructure, including road design, signage, markings, intersections, and other elements that contribute to the overall safety of the road. The purpose is to improve the safety of the road network and reduce the likelihood of accidents. Therefore, option (D) is the correct answer.