Final answer:
The distance a driver must stop from railroad tracks depends on factors such as the speed of the vehicle and the road conditions, as well as the driver's reaction time.
Step-by-step explanation:
In order to determine how far away from railroad tracks a driver must stop, we need to consider the stopping distance of a vehicle. The stopping distance depends on factors such as the speed of the vehicle, the road conditions, and the driver's reaction time.
For example, the stopping distance for a car initially traveling at 30.0 m/s on dry pavement, assuming a 0.500 s reaction time, is shown in Figure 2.34. The total distance traveled from the point where the driver first sees a light turn red is also shown.
Therefore, the specific distance that a driver must stop from railroad tracks would depend on the situation, such as the speed of the vehicle and the specific road conditions.