Freeway junction, highway interchange (NA), or motorway junction (UK) A type of road junction linking one controlled-access highway (freeway or motorway) facility to another, to other roads, …

These types of interchanges were popular in the early era of freeway construction but are usually no longer considered preferable for freeway-to-freeway movement, especially when …

Dec 4, 2025 · A freeway interchange is a system of interconnecting roadways that uses grade separations to facilitate the movement of traffic between two or more major highways or a …

Starting with the basics, there are two main types of interchanges: service and system. Service Interchanges connect a freeway or controlled access facility (typically high-speed, high-traffic …

This section of the Handbook provides treatments for highway design elements in six areas to enhance the performance of aging drivers at interchanges. Also, after the last design element, …

An interchange with only two diagonal ramps, one entrance and one exit, in adjacent quadrants. This interchange serves traffic to and from one direction along the freeway, but ignores the other.

An interchange or separation may be warranted as part of an expressway (or in special cases at the junction of two non-access controlled highways), to improve safety or eliminate a …

An interchange is defined as a system of interconnecting roadways in conjunction with one or more grade separations that provides for the movement of traffic between two or more …

Aug 29, 2025 · According to the Federal Highway Administration, effective interchange design can reduce delay by up to 40% compared to conventional intersections. This article will explore …

The following list contains the most notable road interchanges within the United States divided by each state, which are mainly part of the national Interstate Highway System and are all …