Brett Winton: 由于交叉口组成衰减（道路建设、植被遮挡标志等），每个交叉口注释都会产生持续的维护成本并且交叉口的数量是路段数量的指数。因此，维修路段的成本约为 4 倍，约为 2 倍。

Posted on 2022-06-23

原推：Each intersection annotation creates an ongoing maintenance cost since intersection composition decays (road construction, vegetation occluding signs, etc)

And # of intersections is an exponential of the # of road segments.