An insert car is a fantastic tool. There are a few things you should know and think about.
1. Always move the arm after you have released the brake if the car has an arm or crane on it. This will let you know that the brake has not lodged or become stuck.
2. Allow air space for bumps while traveling. Don’t rest the arm against its stops.
3. Always run the course in the midarm position first at half speed. This may save a life.
4. Level to the camber of the road once the route is chosen.
5. If filming in a tunnel, account for the curve of the walls to the ceiling.
6. Use as many personnel as needed to control the arm.
7. Tie and ensure the safety of all loose equipment.
8. Check for wires on the course.
These are only a few ...