What is the main use of a sidewalk?

The main use of a sidewalk is to provide a designated path specifically for pedestrian use that runs alongside or parallel to a roadway. Sidewalks are designed to enhance safety by keeping pedestrians separate from vehicular traffic. This separation reduces the risk of accidents and promotes safer movement for individuals on foot. Sidewalks also facilitate accessibility for all types of pedestrians, including those who may have mobility impairments.

In addition to safety, sidewalks serve a critical role in urban planning and community design by encouraging walking as a mode of transportation and providing connectivity to various destinations such as homes, businesses, and public transportation facilities. The physical space allocated for pedestrians on sidewalks also contributes to a more pedestrian-friendly environment, which can improve overall community health and well-being.

The other options mention areas meant for vehicular traffic, bus stops, and bicycle lanes, which do not align with the primary function of a sidewalk. These elements serve different transportation needs and highlight the specific purpose that sidewalks fulfill within a transportation system.