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- Stack_interchange abstract "A stack interchange (also known as a butterfly junction) is a free-flowing, grade-separated junction between two roads. It is referred to as a directional interchange in the American Association of State Highway and Transportation Officials Policy on Geometric Design of Highways and Streets.In countries where one drives on the right, left turns are handled by semi-directional flyovers or under ramps. Vehicles first exit the main carriageway to the right, then complete the turn via a ramp that crosses both highways, eventually merging with the traffic turning right from the opposite side of the interchange. A stack interchange therefore has two pairs of left-turning ramps, which may be "stacked" in various configurations above or below the two interchanging highways. In countries where one drives on the left, the appearance of the junction is topologically identical, but traffic flows are reversed.Stacks eliminate the problems of weaving and have the highest vehicle capacity among different types of four-way interchanges. However, they require considerable and expensive construction work for their flyover ramps. Stack interchanges are also widely considered to be an eyesore among residents of homes near existing or proposed interchanges, leading to considerable NIMBY opposition.".
- Stack_interchange thumbnail Four_Level_Interchange.jpg?width=300.
- Stack_interchange wikiPageExternalLink ?ie=UTF8&ll=31.226275,121.464425&spn=0.00344,0.008256&t=h&z=18.
- Stack_interchange wikiPageExternalLink ?ie=UTF8&om=1&z=16&ll=39.350876,-76.496601&spn=0.007417,0.014634&t=k.
- Stack_interchange wikiPageExternalLink ?ie=UTF8&t=k&om=1&ll=33.928388,-118.280354&spn=0.007763,0.014462.
- Stack_interchange wikiPageID "3145063".
- Stack_interchange wikiPageRevisionID "606444132".
- Stack_interchange hasPhotoCollection Stack_interchange.
- Stack_interchange subject Category:Road_interchanges.
- Stack_interchange comment "A stack interchange (also known as a butterfly junction) is a free-flowing, grade-separated junction between two roads. It is referred to as a directional interchange in the American Association of State Highway and Transportation Officials Policy on Geometric Design of Highways and Streets.In countries where one drives on the right, left turns are handled by semi-directional flyovers or under ramps.".
- Stack_interchange label "Stack interchange".
- Stack_interchange label "Sterknooppunt".
- Stack_interchange sameAs Sterknooppunt.
- Stack_interchange sameAs m.08vb40.
- Stack_interchange sameAs Q5253909.
- Stack_interchange sameAs Q5253909.
- Stack_interchange wasDerivedFrom Stack_interchange?oldid=606444132.
- Stack_interchange depiction Four_Level_Interchange.jpg.
- Stack_interchange isPrimaryTopicOf Stack_interchange.
