A driver approaches an intersection at a speed of 50km/h, when the light turns amber. The driver
In order to find out what the driver should do when the traffic light turns amber, we can look at the rules of the road. The key factor is whether the driver has enough time to stop safely before reaching the intersection.
When the traffic light turns amber, it typically means that the signal is about to change to red. Drivers should be prepared to stop unless it's not safe to do so.
To determine whether the driver can stop safely, we need to consider the driver's reaction time and the distance required to stop the vehicle. Let's break down the steps to find the answer:
1. Calculate the reaction time: This is the time it takes for the driver to perceive the changing traffic light and respond by braking. Typically, reaction time is around 1-2 seconds.
2. Calculate the stopping distance: This is the distance required for the car to come to a complete stop. It depends on several factors, such as the vehicle's speed, its braking capability, road conditions, and the driver's attentiveness. Let's assume the stopping distance is 20 meters.
3. Find the total distance covered during the driver's reaction time: This is the distance traveled by the car while the driver is reacting. It can be calculated by multiplying the driver's speed by the reaction time. In this case, 50 km/h (or 13.9 m/s) multiplied by 2 seconds gives us 27.8 meters.
4. Add the stopping distance and the distance covered during the reaction time: The total distance required to stop the vehicle will be the sum of the stopping distance (20 meters) and the distance covered during the reaction time (27.8 meters). This equals 47.8 meters.
Now that we have calculated the total distance required to stop the vehicle, let's compare it to the distance between the vehicle and the intersection. If the distance to the intersection is less than 47.8 meters, the driver should proceed with caution through the intersection. If the distance is greater, it would be safe for the driver to come to a complete stop before reaching the intersection.
Remember, these calculations are estimates based on assumptions, and it's always essential for drivers to use their best judgment and consider the specific circumstances in order to make safe driving decisions.