Delaware Driver Education State Practice Test

What is the best practice when you need to change lanes?

1. Check your mirrors and blind spots, then signal

2. Signal immediately without checking

3. Slow down before changing lanes

4. Only signal if there is another vehicle present

The correct answer is: Check your mirrors and blind spots, then signal

The best practice when changing lanes involves a systematic approach to ensure safety and awareness of your surroundings. Checking mirrors and blind spots is essential as it allows you to assess the area around your vehicle and identify any vehicles or obstacles that may be in your path. This step helps in avoiding potential collisions and ensures that your lane change will not interfere with the progress of other road users. Signaling is a crucial part of this process as it communicates your intention to other drivers. By signaling after checking your mirrors and blind spots, you provide adequate warning to those around you, allowing them to adjust their speed or position accordingly. This practice promotes safety and courtesy on the road. Other options lack critical components of safe lane changing. Signaling immediately without checking does not account for potential hazards that may not be visible in your mirrors. Slowing down before changing lanes is not always necessary, as doing so can confuse other drivers. Lastly, signaling only if another vehicle is present disregards the need for proactive communication with all road users, as there may be pedestrians or cyclists who could also be affected by your lane change. Properly executing the sequence of checking your surroundings and signaling ensures a smooth and safe transition between lanes.