Which description fits a bike path that is completely separated from motor vehicles?

A bike path that is completely separated from motor vehicles is classified as a Class I bike facility. This classification indicates that the bike path is a dedicated, exclusive space for cyclists, ensuring a safe and unobstructed route that minimizes interactions with motorized traffic. Class I facilities typically include off-street bike paths or multi-use trails where bicycles can travel safely without the risk of conflicts with vehicles. This separation enhances safety for both cyclists and pedestrians, making it an ideal choice for recreational and commuting purposes.

The other classifications represent varying levels of integration with vehicle traffic. Class II facilities are designated bike lanes on roads where cyclists share the road with motor vehicles, while Class III refers to shared roadways where cyclists and vehicles operate together without specific lane designations. Class IV typically involves protected bike lanes that provide some level of separation from traffic but are not completely distinct paths. Therefore, only the Class I designation accurately reflects a bike path that is entirely separated from motor vehicles.