Frontage roads refers to the parallel roads or service roads that run parallel along a major thoroughfare or highway. These roads provide access to businesses, homes, and properties that are adjacent to the main highway. Some commonly used synonyms for frontage roads include access roads, parallel roads, service roads, and feeder roads. In some areas, frontage roads are also called alternative routes, bypass roads, or ring roads. Additionally, some cities use the term boulevards or parkways instead of frontage roads. Regardless of the name, these roads provide an essential route for people to access their destinations and avoid the busy main highways.