Final answer:
To safely pass a vehicle, ensure enough room to return to your lane, and when crossing a road, be sure you can walk 4 meters before an oncoming vehicle reaches you. For an approaching car from behind, take evasive action if a collision seems imminent.
Step-by-step explanation:
Before passing a vehicle in your lane, the key consideration is to 'c. be sure there is room for you to return to your lane after passing.' This principle is vital for road safety, as making sure there's enough space to re-enter your lane without cutting off the other driver or forcing them to alter their speed drastically is essential for preventing accidents. When it comes to crossing a road, if a vehicle is 28 meters away (equivalent to 8 car lengths), one should assess whether they can walk at least 4 meters in total before the vehicle reaches them to ensure a safe crossing.
Moreover, in the event of a car approaching from behind and a collision seems imminent, a driver should make a judgment based on the specific situation. If there's a risk of being hit, taking evasive action such as moving to another lane, if safe to do so, or slowing down to avoid impact may be necessary.