Abstract: Longdistance singlelane tunnels have many disadvantages, such as sight block of the driver in a dark and wet environment, risk from multiple vehicles, and low transportation efficiency. As a result, longdistance tunnel wireless communication and positioning technology has been developed using a vehicle autonomous avoidance algorithm, intelligent transportation command system, and vehicle dispatching command terminal. The system provides warnings for vehicles moving in the same or opposite directions, providing collision avoidance warnings 20~35 s in advance when vehicles are moving in opposite directions, and precise positioning and rear end collision prevention notifications within the range of 50~200 m when vehicles are moving in the same direction. The system reduces driving risk of trackless transport in longdistance singlelane tunnel, improves tunnel construction efficiency, ensures the safe and efficient transportation of materials at construction sites, and provides a foundation for smart technology in construction site management. 

Key words:  tunnel; trackless transportation, intelligent avoidance system, vehicle dispatching