NSC Defensive Driving Practice Test 2025 – Complete Exam Preparation

Crossing double yellow lines is typically done to allow a vehicle to make a left turn into a driveway or a parking lot. This action is permitted because it involves accessing a property directly adjacent to the roadway. The use of double yellow lines primarily indicates that no passing is allowed, but exceptions are made for turning into or out of locations.

In other situations, such as overtaking another vehicle, it’s generally prohibited to cross double yellow lines, as this could compromise safety by entering oncoming traffic lanes. During road closures, the appropriate course of action might involve waiting or using detour routes instead of crossing those lines unless specifically directed by traffic management. The notion that it is permissible to cross double yellow lines "at all times" contradicts the purpose of the lines, which are there to manage safe travel on the roadway. Thus, the only scenario among the options presented where crossing double yellow lines is allowed is when making a left turn into a driveway.