Final answer:
Vehicle stopping distance depends on local laws, but for pedestrian safety, vehicles should stop if pedestrians or bicyclists are within a distance that allows the pedestrian to clear the vehicle's path safely. Conditions such as vehicle speed and road conditions are critical, and the installation of traffic signals can greatly enhance pedestrian safety.
Step-by-step explanation:
The specific distance required for vehicles to stop and yield to pedestrians or bicyclists can vary based on local laws and regulations. However, a general rule of thumb for pedestrian safety is that a vehicle must stop if a pedestrian or bicyclist is within a distance that requires the vehicle to stop in order to avoid endangering or impeding the pedestrian's or bicyclist's path.
It is important to consider the road conditions, vehicle speed, and the pedestrian's or bicyclist's distance from the vehicle. As an example, if a vehicle is traveling at the speed limit of 60 km/hr, and we use the guideline that one must be able to walk at least 2 m further than the width of the vehicle to cross safely, this indicates not only the speed of the traffic but also the distance needed to cross safely, which related to the length and width of a vehicle.
As mentioned, pedestrians facing traffic issues would benefit greatly from the installation of a traffic signal, enabling them to cross streets at appropriate and safe times without the need to dodge traffic. Additionally, considerations for exceptional circumstances, such as a medical emergency requiring to break a traffic rule for greater utility, highlight the need for context in determining when it might be necessary to adjust typical behaviors for safety or moral reasons.