Texas Drivers Ed Written Practice Test

When is it illegal to pass another vehicle?

1. On a one-way street

2. Within 100 feet of an intersection

3. When the lane is marked for passing

4. On an undivided highway

The correct answer is: Within 100 feet of an intersection

Passing another vehicle within 100 feet of an intersection is illegal because it poses a significant safety risk. At intersections, vehicles may be stopping, turning, or entering the road, creating unpredictable situations. By prohibiting passing in such proximity to these areas, the law helps ensure that drivers have a clear view of the intersection and can react swiftly and safely to any changes in traffic flow or unexpected movements from other vehicles or pedestrians nearby. In contrast, passing on a one-way street or in a designated passing lane is generally allowed, as these situations do not typically present the same dangers associated with intersections. Additionally, while passing on an undivided highway can be permissible under certain conditions, it also depends on factors like visibility and the behavior of oncoming traffic. The rules regarding passing are designed specifically to minimize potential hazards in areas where the risk is heightened, such as near intersections.