Heuristic algorithm for estimating travel speed in traffic signalized networks

Theoretic methods for travel speed estimation are common in the traffic literature, but treatments of how to account delay caused by traffic signal are less common. This paper is an attempt to improve conventional technique for evaluating travel speed in signalized intersection networks. To do so, this paper employs new concept which is associated with the vehicles' trajectory in the time-space diagram. The most useful advantage of the algorithm proposed in this paper is that, the traffic analysts can reduce much tedious works for screening and selecting a bunch of speed data.