Also known as: 高速道路
A paved Road, typically multi-lane, designed for high-speed or long distance Motor Vehicle traffic, often between cities. They're main public roads serving as high-speed thoroughfares.
The difference between a highway and a Street is that a street is usually inside a City and designed for both vehicle and pedestrian traffic, with Traffic Lights, Sidewalks, and Crosswalks, while a Highway is designed only for vehicles and doesn't have these features. A street is usually designed to allow access to nearby Buildings, while a highway usually has limited entry and exit points.