"Speed blindness" or "Velocitization"

Velocitization is defined as the tendency of a driver to “lose touch” with the rate of speed that they are traveling. Over time, a driver tends to pick up space as a result of velocitization. This can and does result in unsafe driving conditions that can result in a motor vehicle accident. "Velocitization occurs when you have slowed down from a high speed. It then appears to you that the car is moving significantly slower than it actually does."

Du och jag i trafiken 28th Edition, page 178