Driver’s Manual | 71 SLOW-MOVING VEHICLES ALL-TERRAIN VEHICLES AND SNOWMOBILES HORSE RIDERS QUESTIONS The “slow-moving vehicle” symbol, a reflective  orange triangle, must be displayed on the back  of vehicles drawn by animals, most farm vehi- cles, and construction equipment. The United  States Postal Service also requires these orange  safety-triangles to be displayed on all rural mail  delivery vehicles. Use caution when you approach  a slow-moving vehicle and make sure it is safe  before you pass. State law allows all-terrain vehicles (ATVs) and  snowmobiles to legally go across many state  highways and local roadways. Before they cross,  they must come to a stop and yield to traffic. They  must go across at a 90-degree angle to the road surface. Horse riders are subject to, and protected by,  the rules of the road. They also must ride single  file near the right curb or road edge or on a right  shoulder, lane or path that can be used. The law requires you to be careful when you  approach a horse being ridden or walked along a  road. You must drive at an acceptable speed and  at an acceptable distance away from the horse. It  is illegal to sound your horn when you approach  or pass a horse. Before you go on to Chapter 12, make sure you  can answer these questions: • How do the blind spots around a large com- mercial vehicle differ from the blind spots  around a car? • How does the stopping distance of a large  vehicle with air brakes compare with the  stopping distance of a car? • After you pass a large vehicle, what should  you make sure of before you return to the  lane of the large vehicle? • What is the best method to follow when you  approach a large vehicle that is in reverse  as it moves toward a loading area? • When children are close, what should you  do before you back out of a driveway? • How can you identify a blind pedestrian to  whom you must yield the right-of-way? • Where must a pedestrian walk when there  are no sidewalks? • How must you approach a bicyclist? • Must a bicyclist obey traffic laws and signs? • Where there is no bicycle lane, where on  the road must a bicyclist ride? • What equipment must a bicycle have when  used at night? • What can a driver do to be more aware of motorcyclists? • What factors contribute to drivers not being  aware of motorcycles? • Why are motorcycles harder to see?  • Why is it important for a motorist to be  aware of motorcycles? • May three motorcyclists ride side-by-side in  a single lane? • What is the slow moving vehicle symbol? • Where are you likely to find an ATV, snow- mobile or horse rider?