摘要: In Wireless Sensor & Actor Network (WSAN), sensors are used to sense data from environment and send this to the actor for taking appropriate action. In semi automated architecture data is forwarded to the actor and then to sink. Now a days researchers have proposed to use WSAN for road surveillance which is called as road Sensor and Actor Network (RSAN). There are many algorithms and protocols designed to reduce energy consumption. But our proposed algorithm OPT is efficient than existing one. This Optimum [OPT] algorithm specifically designed for RSAN. In RSAN to choose set of working actor is one of parameter to minimize energy consumption. This is proved with simulation result.