CDL Combination Vehicles TestDriving Combination Vehicles SafelyMedium
You are driving a combination vehicle and need to change lanes to the left. After checking your mirrors, you notice a small car in the blind spot next to your trailer. What should you do?
- ASpeed up to clear the blind spot quickly and then change lanes.
- BSignal and begin to merge slowly, expecting the car to move.
- CHonk your horn and flash your lights to alert the driver.
- DCancel your signal, wait for the car to pass, and then re-evaluate for a safe lane change.
Show answer & explanationAnswer & explanation
Correct answer: D. Cancel your signal, wait for the car to pass, and then re-evaluate for a safe lane change.
It is never safe to change lanes when another vehicle is in your blind spot. The safest action is to wait for the vehicle to clear your blind spot, or adjust your speed to allow it to pass, then re-check and proceed with the lane change only when clear.
Why the other options are wrong
- A. Speeding up to clear a blind spot is aggressive and risky, potentially putting you in another blind spot or reducing reaction time.
- B. Attempting to merge when a vehicle is in your blind spot is extremely dangerous and can lead to a collision.
- C. Honking and flashing lights might startle the driver but does not make the lane change safe; it's still a risk.
Blind Spot Lane Change
Before changing lanes, ensure the blind spot is clear. If occupied, wait for the vehicle to pass before proceeding.
- Blind spots are large for combination vehicles.
- Always check mirrors and physically look.
- Never merge if a vehicle is in your blind spot.
Memory trick: Blind spot's secret, a hidden car, don't change lanes, wait afar.