What is the main purpose of keeping a vehicle blocking the lane during the two-person method?

• A. To prevent other vehicles from entering the inspection area
• B. To provide a parking space
• C. To alert pedestrians
• D. To improve interior lighting

Answer: (A)

In this method, controlling the scene and keeping a safe, stable inspection space is the priority. The vehicle used to block the lane acts as a physical barrier that prevents other traffic from entering the inspection area. This creates a protected corridor for the two-person team to conduct the check, reduces the risk of interference or a sudden maneuver by approaching drivers, and helps maintain a safe standoff distance for everyone involved.

That’s why the primary purpose is to stop other vehicles from entering the inspection area. The other options don’t fit: it isn’t about parking space, alerting pedestrians, or improving lighting, which aren’t related to maintaining a controlled inspection zone.