When driving on an interstate:
- Stop on the shoulder of the road if you are tired.
- You should always use cruise control.
- Signal, check mirrors, and check blind spots before changing lanes. ✓
- You should change lanes often.
Answer: C. Signal, check mirrors, and check blind spots before changing lanes.
Before you change lanes on an interstate, signal, check your mirrors, and check your blind spots.
Why this is the answer
The Texas handbook describes the lane-change check as a sequence: look in the rearview mirror, look in your side mirrors, and look over your shoulder into the blind spot to confirm the roadway is clear and nobody is passing you, then turn on your signal. It makes the same point about blind spots when it warns that motorcycles are easily missed in a quick look, telling drivers to check mirrors and blind spots before entering or leaving a lane of traffic. On a fast-moving interstate, that look-over-your-shoulder step is what catches a vehicle your mirrors missed.
Why the other answers are wrong
- A. Stop on the shoulder of the road if you are tired. — The passages say nothing about pulling onto the shoulder when you are tired, so this is not a rule they support.
- B. You should always use cruise control. — Cruise control is not mentioned anywhere in these passages, and nothing says you should always use it.
- D. You should change lanes often. — Nothing in the passages encourages frequent lane changes; they describe how to change lanes safely, not how often.
Remember it
Mirrors show you most of the road, but only a turn of your head shows you the blind spot.