An _________ is the connection of a highway to a road or another highway through a series of ramps.

Explanation

An interchange is a road junction where two or more roads cross over one another (i.e., at different levels) so as not to impede one another's traffic flow. Instead, the roads are connected through a series of connecting ramps. These ramps allow you to leave one road and enter another one safely, without disrupting the flow of traffic. There are diamond, cloverleaf, and folded diamond interchanges, among others.