What should be included in a road safety assessment?

A comprehensive road safety assessment should encompass the evaluation of road conditions and existing safety measures, which is what the selected option highlights. This includes analyzing factors such as the quality of the road surface, visibility, signage, road design, and the presence of safety features like guardrails or traffic signals. Understanding these elements is essential because they directly impact the safety and behavior of all road users, influencing the overall risk of accidents.

Including road conditions and existing safety measures allows for a holistic view of the environment in which traffic operates. It helps identify areas that may require improvements or modifications to enhance safety. This assessment would typically involve collecting data on road geometry, surface materials, maintenance records, and the effectiveness of current safety interventions.

The other options fall short of providing a comprehensive picture. Focusing solely on user behaviors, traffic volume data, or the types of vehicles does not incorporate the critical physical aspects of the road itself, which play a significant role in influencing safety outcomes. Therefore, the evaluation of road conditions and safety measures is essential for developing effective strategies to improve road safety overall.