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A 4-level stack with one loop. Requires a VRML plugin to view.
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Photographs from around the state.
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Engineering firm page illustrating the connections in this feature. Includes illustrations and a video demonstration.
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Large archive of maps and descriptions of unusual or complicated facilities, primarily in the United States.
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Includes aerial photographs and commentary about certain features.
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Compendium of map images from various European countries.
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The M6 at the A38(M) in Birmingham.
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Detailed entries for locations in New York State, using official state aerial photography.
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Page describing types found in the United Kingdom. Includes a link to the Bad Junctions page.
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Uses Google Maps to locate every interchange on the U.S. Interstate system.
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Descriptions and diagrams of many types.
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Describes how this unusual intersection feature works, including history.
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Aerial photos of and commentary on various interchanges which the author finds unusual or substandard.
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A specialized intersection. Page includes diagrams and research.
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Covers Michigan and North Carolina.
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Diagrams and commentary of various ones in the East-Central U.S.
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Includes aerial photographs and descriptions of unusual or complicated facilities in the United States.
