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A partial cloverleaf interchange or parclo is a modification of a cloverleaf interchange. The parclo interchange was developed by the Ontario Ministry of Transportation as a replacement for the cloverleaf on 400-Series Highways where full grade separation is not required, removing the dangerous weaving patterns and allowing for more acceleration and deceleration space on the freeway. The design has been well received, and has since become one of the most popular freeway-to-arterial interchange designs in North America. It has also been used occasionally in some European countries, such as Germany, Croatia, Italy, the Netherlands, and the United Kingdom. ==Relationship with other interchanges== *A diamond interchange has four ramps. *A cloverleaf interchange has eight ramps, as does a stack interchange. These are fully grade separated, unlike a parclo - traffic flows without stops on all ramps and throughways. *A parclo has four or six ramps, not very common are five ramps to handle a specific demand. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Partial cloverleaf interchange」の詳細全文を読む スポンサード リンク
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