A route is a sequence of one-way streets connecting two intersections.

一条路径由一系列将两个路口连通的单行线组成。

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If it is not a pure two-way path which includes some asymmetric links, the source needs to spread the RACK along the route and inform the route-related nodes to establish the corresponding route.

如果找到的路由不是纯双向链路，则源节点还需要将RACK报文沿找到的回路路由循环一次，通过RACK的传播来通知中间节点建立起相应的路由。

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The proposed changes would see Highwood Road become a single-carriage dedicated bus and cycle route between Coniston Road and The Boulevard, with two-way traffic permitted between the Standing Stone roundabout and Coniston Road.

BBC: Hayes Way bypass