Not too close so that if they break down you can't pull out past them. . . not too far away so that you don't cause an accident behind by suprising driver following you by how early/far away you stop.
1
15 feet
You should always remain a safe distance when you are behind another vehicle. The recommended amount of space that you should leave is one and half car lengths.
When stopped behind another vehicle on a hill, you should keep a safe distance to allow for enough space to maneuver if necessary. Engage your parking brake to prevent rolling backward if you need to stop for an extended period. Additionally, be prepared to accelerate smoothly when it's time to move again, ensuring you have a good view of the road ahead. Always stay alert for any changes in traffic conditions.
3 seconds
The minimum following distance behind another vehicle that should be maintained is typically 3-4 seconds. This allows enough time to react in case the vehicle in front suddenly stops or slows down.
Keep your headlights on low beam.
When stopped on the highway, your reflectors should be placed at least 200 feet behind your vehicle to alert oncoming traffic. If it's safe to do so, place one reflector at the rear of your vehicle and another 200 feet in front of it. This setup helps ensure visibility and gives approaching drivers ample warning. Always ensure that the reflectors are positioned where they can be seen clearly.
In Texas, you must stay at least 500 feet behind an emergency vehicle that is using its lights and sirens. If the vehicle is stopped and its lights are flashing, you should slow down and, if safe, move to a lane away from the vehicle. Failing to comply can result in fines and penalties.
You should be 2-3 seconds behind a given point that the vehicle in front just passed. At 65 mph, that is 95 feet per second, so multiply by 2 or 3 and you should be 190-280 feet behind
In Utah, you must stay at least 500 feet behind an emergency vehicle that is using its lights and sirens. If the emergency vehicle is stopped and its lights are flashing, you should also move to a lane that is not adjacent to the vehicle, if safe to do so. This distance helps ensure the safety of emergency responders and allows them to carry out their duties effectively.
The vehicle that ran into you should be at fault, and should have to pay costs associated with repairs to any damaged vehicles.