noun, noun or participle which takes 'suru', intransitive verb
going at a very slow speed; crawling along
Used especially in traffic or driving contexts to describe moving at the slowest possible speed, slower than ordinary 徐行. Often used as a noun or with する.
See also: 徐行
工事区間では最徐行してください。
Please go at a very slow speed in the construction zone.
車
The car is moving at a crawling speed.