Which of the following distances is crucial for safe overtaking on two-lane roads?

The crucial distance for safe overtaking on two-lane roads is the Passing Site Distance. This distance is defined as the minimum length of road necessary for a driver to safely complete a passing maneuver while accounting for factors like oncoming traffic and the speeds of both vehicles involved.

When a driver decides to overtake another vehicle, they need to ensure that they have sufficient distance to accelerate, overtake the slower vehicle, and return safely to their lane without interfering with oncoming traffic. Passing Site Distance takes into account both the distance required to execute the maneuver and the stopping capability should a hazard arise.

In contrast, the other distances mentioned, while important, do not specifically address the unique requirements of overtaking. For instance, Stopping Sight Distance pertains to the distance necessary for a driver to stop after spotting a hazard, which does not encompass the dynamics of overtaking. Decision Site Distance is related to the distance a driver needs to make an informed decision about whether or not to pass, but it does not measure the actual distance required to complete the overtaking safely. AADT, or Average Annual Daily Traffic, is a traffic volume estimate and does not relate to the specific geometric or dynamic conditions essential for overtaking.

Therefore, the focus on the specific