• Slippery Roads. Because you need more distance to stop your vehicle on slippery roads, you must leave more
space in front of you. If the vehicle ahead suddenly stops, you will need the extra distance to stop safely.
• The Driver Behind You Wants to Pass. Slow down to allow room in front of your vehicle. Slowing will also allow
the pass to be completed sooner.
• Following Motorcycles. If the motorcycle should fall, you need extra distance to avoid the rider. The chances of a
fall are greatest on wet and icy roads, gravel roads, and metal surfaces such as bridges, gratings and streetcar
or railroad tracks.
• Following Drivers Who Cannot See You. The drivers of trucks, buses, vans, or vehicles pulling campers or trailers may not be able to see you when you are directly behind them. They could stop suddenly without knowing you
are there. Large vehicles also block your view of the road ahead. Falling back allows you more room to see ahead.
• You are Being Followed Closely. If you are being followed closely, pull to the right and allow the vehicle
behind you to pass.
• Pulling a Trailer. The extra weight increases your stopping distance.
• Low Visibility. When it is hard for you to see ahead because of darkness or bad weather, you need to increase
your following distance.
• Following Emergency Vehicles. Police vehicles, ambulances, and fire trucks need more room to operate.
• Railroad Crossings. Leave extra room for vehicles required to stop at railroad crossings, including transit buses,
school buses, and vehicles carrying hazardous materials.
• Stopped on a Hill or Incline. Leave extra space when stopped on a hill or incline. The vehicle ahead may roll back