Which vehicles are permitted to use High-Occupancy Vehicle (HOV) lanes?

High-Occupancy Vehicle (HOV) lanes are designated to encourage carpooling and reduce traffic congestion. Various types of vehicles can utilize these lanes, typically to promote efficient use of road space and to support environmental considerations.

Buses are included because they carry multiple passengers, thereby promoting higher occupancy and reducing the number of vehicles on the road. Motorcycles are also allowed in HOV lanes since they provide a means of transportation that takes up less space than larger vehicles, contributing to the goal of reducing traffic. Low-emission vehicles benefit the environment and are often given access to HOV lanes as an incentive to encourage their use.

Thus, the correct answer encompasses all these vehicle types, acknowledging the intent behind HOV lanes to manage traffic flow effectively while supporting environmentally friendly transportation options.