Stopping distance can increase up to 10 times longer in icy conditions compared to dry conditions. This significant increase is mainly due to greatly reduced tire grip on ice, which affects both braking effectiveness and overall control of the vehicle. For example, at 70 mph, the stopping distance could increase from around 77 meters on dry roads to about 771 meters on icy roads. Even at slower speeds like 20 mph, stopping distance on ice can be around 120 meters, which is considerably longer than on dry surfaces. Drivers are advised to reduce speed, increase following distance, and brake gently in icy conditions to maintain safety.