The calculation method with Grubbs test for real-time saturation flow rate at signalized intersection

Abstract

In order to provide accurate and real time method for the calculation of saturation flow rate at signalized intersection, by the analysis of the motion law of traffic and the composition of the queue, this paper proposes that it should to eliminate the data which more probability contains outlier data and exclude the outliers in the rest of the measured headway. Finally, the saturated headway and saturation flow rate are calculated. The effectiveness of the proposed approach is verified through an example.