DEVELOPMENT OF SATURATION FLOW MODEL FOR MIXED TRAFFIC ON URBAN ARTERIAL ROADS, INTERSECTION

past research has indicated that the effectiveness and efficiency of traffic control of signalized intersections strongly depend on the accurate calculation of saturation flow rate, particularly when demand approaches capacity. Minimal work has been done in the past on calibration of the parameters for saturation flow rate used in traffic control of signalized intersections. This paper discusses a saturation flow study conducted in Ahmedabad city, the commercial city of Gujarat, which lies in the west of India. Using linear regression analysis, of saturation flow rate for four signalized intersections has been studied. Base saturation flow rate have been calculated. The results confirm that the methodology for saturation flow rates, put forward by highway capacity manual (HCM) can also be used in India. However, parameters should be systematically calibrated, based upon widespread study, before they can be used effectively in the practice of traffic control in India.