里程标志 meaning in English

distance sign
milepost

Chainage marker system
里程标志系统
Chainage markers will be installed along strategic routes to provide information to motorist on their position along the route
里程标志设置于各主要干线，以便驾驶者能清楚其所在位置。
Do not stand in front of your vehicle , or attempt to check or repair your vehicle on the roadway
如坏车在快速公路上，应清楚说明干号码及里程标志。切勿把车辆长时间留在路边而不予处理。
Emergency telephones may be found at the roadside of some expressways follow the direction indicated by the chainage marker and in tunnel areas these telephones are connected directly to police or tunnel control centres
在一些快速公路上根据里程标志指示方向，以及在隧道区域内，会设有紧急电话，直接驳通警署或控制中心。