What should you always check for before executing a lane change?

Before executing a lane change, it is essential to check your blind spots and the surrounding vehicles. This practice is crucial for ensuring safety on the road. Blind spots are areas around your vehicle that you cannot see in your mirrors, and other vehicles may occupy these spots at any time. If you change lanes without checking these areas, you risk colliding with another vehicle that you did not know was there.

By checking the surroundings, including the position of vehicles next to you, their speed, and the distance between you and them, you can make an informed decision about whether it is safe to change lanes. This awareness minimizes the chances of accidents and enhances your ability to respond to any unexpected movements from other drivers.

Other options would not provide sufficient information for a safe lane change. Traffic signs are important but do not address the immediate dangers posed by vehicles sharing the road with you. Similarly, while being aware of road conditions and the weather is important for overall driving safety, they do not specifically relate to the immediate action of changing lanes. Thus, the focus should be on visibility and awareness of surrounding traffic.