Why are bicyclists safer on the road than on the sidewalk?

Bicyclists are safer on the road than on the sidewalk because drivers are more likely to see and anticipate them when they are in the flow of traffic. On the sidewalk, cyclists are at risk of collisions with pedestrians, vehicles at intersections, and obstacles like poles or signs. Additionally, drivers may not expect or look out for cyclists on the sidewalk, increasing the chances of accidents.