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A road junction is a location where vehicular Traffic can change between different routes or directions of travel. ORIGINS Roads were initially built as rights of way to link locations of interest: towns, fortification forts and geographic features like ford (river) fords. As a result, many such locations formed the meeting point of such roads and they became the first road junctions. Where roads met outside of town, these junctions provided an attractive point to build a new settlement, such that they could receive passing trade from both directions. Scotch Corner is an example of such a location. MODERN JUNCTIONS However, with the 20th century advent of road traffic, roads became much busier and junctions became clogged with vehicles unable to cross each other's paths. In modern practice, Bypass (road) bypasses and beltway ring road's are used to keep through traffic ''out'' of major population centres. INTERSECTION VS. INTERCHANGE There are two different types of junction between roads. Interchange (road) Interchanges are junctions where roads pass above or below one another, preventing a single point of conflict by utilising grade separation and slip road's. The terms ''motorway junction'' and ''highway junction'' typically refer to this layout. Intersection (road) Intersections do not use grade separation (they are at-grade intersection at grade) and roads cross directly. Template:Roadjcts Category:Transport infrastructure |