Because this was disruptive and required the demolition of buildings above the tunnels, most of the line went under existing roads.

由于此种方法是对路面是破坏式的，且需要损毁地上的建筑物，大多数地铁线埋藏于已建成的城市道路之下。

We laid a lot of the cables along existing roads and tunnels, which puts much of it right along the coast.

我们沿着现有的道路和隧道铺设了很多电缆，其中大部分都位于沿海地区。

However, this is the first time a panel has been designed to be laid directly on top of existing roads and the first project to install the panels on public highways.

然而，这是第一次将电池板设计成可直接铺设在现有道路表层，同时也是第一次将电板安装于公共道路的项目。