Motorway

device · 1924 · Electric age

A high-speed road without crossings.

What it is made of

Interchange — has part. Interchanges.

Principles and materials it uses

Concrete — is made of. The roadway is concrete.
Asphalt — is made of. Or asphalt.

What it is a kind of

Paved road — is a kind of. A road.

Take Motorway apart