Superstreet
From Wikipedia, the free encyclopedia
A superstreet is a type of road intersection which is a variation of the Michigan left. In this configuration, a lower traffic crossing intersection is closed to all motorized traffic so that the sidestreet traffic wishing to turn left or go straight must turn right onto the divided highway where they must make a U-turn through the median a short distance away from the intersection and then either go straight or make a right turn at their intersection.
[edit] External links
- Federal Highway Administration, Alternative Intersection Treatments - Superstreet Median Crossover
- North Carolina DOT - proposed superstreet in Chapel Hill (note: this project does not include the left turns from the main road)
- Brunswick Beacon article Superstreet considered for U.S. 17
| Types of road junctions | |
| Interchanges (grade separated) |
Cloverleaf - Diamond - Directional T - Diverging diamond Parclo - Trumpet - SPUI - Stack - Three-level diamond - Raindrop |
| Intersections (at-grade) |
Box junction - Continuous flow - Hook turn - Jughandle - Michigan left Quadrant roadway - Roundabout - Superstreet - 3-way junction - Traffic circle - Bowtie |
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