关键词: 绕城高速公路, 互通式立交, 间距, 密度, 对策

Abstract: There are so many interchanges on the ring highways of Chongqing that the space between interchanges becomes smaller and smaller. In order to meet the requirements of minimum space between interchanges and enable the ring highway to be made full use of，the characteristics of interchanges on the ring highway are analyzed. According to the criterion of the interchange space in“Highway Route Design Specification”(JTG D20-2006)，the interchange density of Chongqing ring highway is discussed，with the combination of successful examples of small distance interchanges built in Chongqing and other cities. Finally，preliminary measures of small distance interchanges on the ring highway are proposed.

Key words: ring highway, interchange, space, density, measures