Abstract: This paper introduces a hardwareindependent, reliable and connectionoriented transportation control protocol for urban traffic surveillance based on the trend of urban traffic cyberphysical system and remote control. We uniform the structure of the traffic information data and the manipulation instructions of all traffic devices,and implement remote sensing and control via the Internet. We design the data format of mutual communication packet between the client and the server, and on the basis of the properties of data communication protocol: atomicity, ordering, realtimeness and fault tolerance, and implement the pivotal technical issues including connection establishment, link status maintenance, data transmission, packet loss detection and retransmitting, and congestion controlling. The feasibility and performance are analyzed through simulation and experiments.

Key words: transmission protocol;traffic surveillance;urban traffic sensing;remote control