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In the ice and snow weather, road driving safety has always been a major problem. A road surface temperature monitoring system design and implementation based on GPRS technology and RIA model is introduced in this paper. In the front, SCM controls sensor to real-time collect surface temperature information and data, the ARM7-based GPRS module takes charge of data transmission; the system submits the information and data to the back-end server at the same time through the internet network. When the monitoring temperature data exceeding the warning range, the system will heat automatically to melt the ice and snow in the surface, and alert messages will be sent to the monitoring and management personnel synchronously. System software building in the basis of the Flex technology to realize the whole data reading and operation, because the Flex technology can achieve real-time data communication and asynchronous transmission between the client and service, improve the system's responsivity. System realization will provide more protection and significance to the road traffic safety of critical surface and roadbed under ice and snow condition.