A split intersection is a rarely built traffic junction and the level variant of the motorway junction with parallel ramps, which is also known as "diamond" or "Dutch ramps" with widened ramps. Compared to a conventional four-armed traffic junction or a street intersection , the main traffic direction is divided into one-way lanes, just like with motorway-like roads , only with a distance of between 60 and 100 meters, in order to enable left-turners to enter the secondary direction (crossing street) without conflicting with oncoming traffic. The secondary direction receives a second intersection. The fourth arm of the two intersections is a one-way street leading away in the main direction, which eliminates the fourth conflict, comparable to a T-shaped junction, and improves the flow of traffic in the main direction .
Built transport hubs of this type
- Between Legacy Drive and Preston Parkway Plano (Texas) , with Texas-U-turn -Wenderampen, .
- Between the New Dallas Highway ( US 77 ) and the E. Industrial Boulevard ( TX-340 ) in Lacy Lakeview (Texas) , .
- Between Stock Road and Winterfold Road in Perth, Australia.
- It was the most common node type after construction of the Mountain View Corridor ( Utah State Route 85 ), which is replaced by elevation-free nodes.
Town Center Intersection
The Town Center Intersection (TCI) is very similar to the Split Intersection in that it also divides the secondary direction and thus forms two main directions. This reduces the conflicts of each of the four resulting nodes to two traffic directions.
Their most common use is the grid-like one-way streets in city centers or in a square city .
The partially height-free variants of the TCI are the three-storey diamond, also known as " volleyball ", and the split diamond interchange , which can be roughly referred to as a " split diamond " and has only two floors and one main direction.
- Institute for Roads and Railways at KIT: Design and Construction of Roads. Part: road design. (PDF; 8.44 MB). Retrieved September 7, 2013.
- Joe G. Bared, Evangelos I. Kaisar: Advantages of The Split Intersection. Federal Highway Administration , Issue No: Vol. 63 No. June 6, 2000.
- Joe Bared, Evangelos Kaisar: Benefits of Split Intersections. Transportation Research Board.
- Signalized Intersections: Informational Guide. Federal Highway Administration, Chapter 10.3.1, publication number FHWA-HRT-04-091, 2004 ( PDF ).
- Town Center One-Way Couplets (Pt1).
- Split intersection (TCI), Waco TX.
- Town Center Intersection. At: youtube.com.