Ramp

Japanese: ramp
Ramp

…When expressways intersect or connect with each other, they are functionally interchanges, but to distinguish them from entrances and exits to general roads, on Japanese intercity expressways, they are called junctions. Also, entrances and exits to urban expressways are often simply called ramps, since the connecting roads that go up and down parallel streets are often not integrated into one unit. The location and intervals of interchanges as entrances and exits to expressways are determined by geographical conditions such as the location of the city, the natural topography, and traffic conditions such as the volume of traffic entering and exiting, and the roads that connect. …

*Some terminology explanations that mention "ramp" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…高速道路が相互に交差,接続するときも,機能的にはインターチェンジであるが,一般道路への出入口と区別するため,日本の都市間高速道路では,これをジャンクションjunctionと呼んでいる。また都市高速道路の出入口は,並行する街路に昇降する連結路が分散して設置され,一つのまとまった形を形成していないことが多いので,単にランプrampと呼ばれている。高速道路の出入口としてのインターチェンジの設置位置や間隔は,都市の位置,自然地形などの地理的条件や,出入交通量,接続する道路などの交通条件によって決められる。…

※「ramp」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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