Print Email Facebook Twitter Speed distributions at a controlled junction using microscopic real data from image processing Title Speed distributions at a controlled junction using microscopic real data from image processing Author Wilmink, I.R. van Arem, B. TNO Bouw en Ondergrond Publication year 2008 Abstract Modeling realistic driving behavior at signalized junctions is fundamental for many applications, for instance for determining the signal capacity or for estimating traffic emissions. For these measures, the knowledge of speed, acceleration and deceleration of individual vehicles passing the signal is crucial. This paper analyses these characteristics by using real data collected using image processing and clustering techniques. These methodologies allow one to obtain vehicle trajectories with very high detail, providing individual vehicles speeds at a microscopic level. In this paper we focus on analyzing the empirical distributions of speeds observed with this unique dataset near and up to a few meters upstream the stop-sign. We compared these distributions with the results of repeated simulations of two microscopic software programs. Some inconsistencies were found with this comparison. A direct consequence of these inconsistencies might be in the estimation of traffic emissions, which are expected to be underestimated if microscopic simulation programs are not well calibrated. Subject Logistics To reference this document use: http://resolver.tudelft.nl/uuid:e01542b7-f042-4677-9542-6b8bde8431c3 TNO identifier 331813 Source Proceedings of the 11th International IEEE Conference on Intelligent Transportation Systems (ITSC2008), October 12-15, 2008, Beijing, China, 6 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.