When considering detour routes, what factors should be assessed?

Assessing detour routes is critical to ensure the smooth flow of traffic around an incident. The correct choice focuses on the presence of construction and roadway geometry, which are pivotal factors in determining the effectiveness and safety of a detour.

When evaluating a detour route, knowing whether there is ongoing construction is essential, as it may impact travel times and safety. In addition, understanding the roadway geometry—such as the width of lanes, curvature of the roads, and the presence of intersections—can help ensure that vehicles, especially larger ones like trucks, can navigate the detour safely without undue delays or risk.

In contrast, while the type of road surface can impact vehicle traction and handling, it does not encompass the broader implications that construction and geometry present on overall traffic flow. Quantity of traffic lights may influence stop-and-go situations, but it does not address the structural aspects that could impede or facilitate smoother traffic movement. Weather conditions do play a significant role in road safety and could affect traffic behavior, but they are typically less controllable and more variable than ongoing construction projects or road configurations.

Thus, focusing on construction and roadway geometry provides the necessary framework to analyze and implement an effective detour that prioritizes safety and efficiency.