Question

Difficulty: EasySpatial Awareness and Blind Spot Management

Place the following steps in the correct chronological order for a driver planning to execute a safe lane change to the left.

  1. 1Check the interior rearview mirror and left side mirror to scan surrounding traffic flow.
  2. 2Turn on the left turn signal to alert surrounding drivers of your intention.
  3. 3Perform a chin-to-shoulder head check over your left shoulder to inspect the blind spot.
  4. 4Smoothly steer into the left lane while maintaining a safe speed.

Answer

The proper sequence for changing lanes safely is: first, check the rearview and side mirrors; second, activate the turn signal; third, perform a over-the-shoulder head check to clear the blind spot; fourth, smoothly complete the lane change.
Safe lane-changing procedure requires checking mirrors first to gain general spatial awareness, signaling to inform other drivers, conducting a physical head check over the shoulder to inspect blind spots, and finally moving into the lane.

Step-by-Step Solution

1
Check rearview and left side mirrors
Assesses overall traffic conditions behind and beside the vehicle
Establishes initial situational awareness prior to signaling
2
Turn on the left turn signal
Alerts other road users of planned movement
Communicates driver intent early to give surrounding traffic time to react
3
Look over the left shoulder (chin-to-shoulder head check)
Verifies that no vehicle, motorcycle, or bicyclist is hidden in the blind spot
Side and rearview mirrors leave adjacent zones unmonitored
4
Steer smoothly into the new lane
Completes the lane change safely
Executed only after confirming space is completely clear

Key Concept

Sequential lane change procedure requiring physical blind spot checks
Estimated Time:45s
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