An efficient traffic control system is an important issue to reduce the traffic congestion. In this research, area based traffic control system is implemented for four-way intersection by using image processing techniques. This system is a vehicle-actuated signal type control system such that traffic cycle time can be varied and related to the actual demands by traffic. The CCTV traffic video file at a station in Mandalay is utilized as the input for the image processing. The amount of vehicles bounded on the road is estimated and defined as the traffic area with the numbers of pixels. Depending on sum of the amount of area on both opposite directions, three types of traffic cycle times are determined such as 60 sec, 85 sec and 120 sec respectively. The vehicles areas on the analyzed road are calculated by using contour, moment and area-based calculation image processing algorithms. The experimental results are implemented with the help of OpenCV and simulation of traffic signal timing sequence is tested with Arduino.