An VRML rendering of the 15-91 interchange, Corona California.
A 4-level stack with one loop. Requires a VRML plugin to view.
California Freeway Interchanges
Photographs from around the state.
US Highway Interchange Browser
Covers Michigan and North Carolina.
WhereRoadsMeet
Contains aerial photographs and descriptions of unusual or complicated facilities in the United States.
Continuous Flow Intersections
Engineering firm page illustrating the connections in this feature. Includes illustrations and a video demonstration.
Interchanges
Page describing types found in the United Kingdom. Includes a link to the Bad Junctions page.
Interchange of the Week
Detailed entries for locations in New York State, using official state aerial photography.
Images of Britain - Spaghetti Junction
The M6 at the A38(M) in Birmingham.
Highway Feature of the Week
Large archive of maps and descriptions of unusual or complicated facilities, primarily in the United States.
Kurumi's Field Guide to Interchanges
Descriptions and diagrams of many types.
Unusual Interchanges
Diagrams and commentary of various ones in the East-Central U.S.
Interstate Interchange Browser
Uses Google Maps to locate every interchange on the U.S. Interstate system.
Michigan Left Turn
Describes how this unusual intersection feature works, including history.
The Echelon Interchange
Professional paper on this part-at-grade, part-grade-separated intersection.
NCRoads.com: The Interchange Museum
Diagrams of unusual interchanges in North Carolina.
The Parallel Flow Intersection
A specialized intersection. Page includes diagrams and research.
Highway Heaven Blog
Includes aerial photographs and commentary about certain features.
Museum of Dumb Highway Design
Aerial photos of and commentary on various interchanges which the author finds unusual or substandard.
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