Some vehicles are required to improve their visibility in the dark to avoid accidents. These include school buses, trucks, and emergency services. For the buses, it is to protect the children from harm. For the trucks, it’s to prevent them from colliding with smaller cars. For emergency vehicles, it’s to allow them to go at high speed without incident.
The reflective tape for vehicles usually has a chevron pattern with black and yellow stripes. The contrast makes them easy to spot. They can be seen whether night or day. Most laws require their placement at the back of the vehicle where the next car can see them.
They can also be placed around vital spots such as escape doors and fire extinguishers. They can be visual guides for the occupants and emergency workers so they can take immediate action to save lives.