noun
access lane; service road; bypass
Refers to a road that runs alongside a main road, providing access to adjacent properties or serving as a bypass. Often used in the context of highways or freeways.
高速道路の側路は、地元住民の生活道路として使われている。
The service road alongside the expressway is used as a local access road by residents.
この側路を通れば、渋滞を避けて迂回できる。
If you take this bypass, you can avoid the traffic jam.