Print Email Facebook Twitter The Evaluation of Traffic Control in Changsha City Title The Evaluation of Traffic Control in Changsha City Author Lu, S. Li, J. Van Zuylen, H. Faculty Civil Engineering and Geosciences Department Transport & Planning Date 2012-08-01 Abstract Different aspects of the traffic control system in the CBD of Changsha have been evaluated. A general issue is the safety conditions, which are evaluated qualitatively. The second issue is the low saturation flow observed on the intersections, that appear to be 20 to 30% lower than the ones in comparable situations in Europe or North America. Travel times could be determined rather well using GPS data from taxis. That method was validated using video observations. Bluetooth scanners have been tested for the measurement of travel time, but they appear less suited in urban areas. The paper evaluates the accuracy and reliability of the loop detectors in the traffic control system SCATS. Lastly, the signal timing of a 13- nodes network in the CBD of Changsha has been optimized with TRANSYT-14. This optimized (fixed time) control showed a significant better performance than the control by the SCATS system. Subject taxi GPSbluetoothTRANSYTSCATStravel timesaturation flow To reference this document use: http://resolver.tudelft.nl/uuid:6bfce588-c2b6-4e4d-945f-1d417a29a34c DOI https://doi.org/10.1016/j.sbspro.2012.04.094 Publisher Elsevier ISSN 1877-0428 Source Procedia - Social and Behavioral Sciences, 43, 2012 Part of collection Institutional Repository Document type journal article Rights © 2012 The Author(s)Elsevier Files PDF Lu_2012.pdf 925.01 KB Close viewer /islandora/object/uuid:6bfce588-c2b6-4e4d-945f-1d417a29a34c/datastream/OBJ/view