 I'm Sergeant Dotz with the Albemarle County Police Department's Traffic Unit. What do you know about perception response time? Essentially, it's your reaction time. It's how long it takes for a deer, ball, dog, or pedestrian to enter your view while driving and you hit the brakes. Now imagine driving 35 miles an hour on a street designed for 25 miles an hour. Your stopping distance is much farther than the street was designed for, creating unsafe conditions for you and others utilizing our roadways.