Print Email Facebook Twitter Microscopic Traffic Behaviour near Incidents Title Microscopic Traffic Behaviour near Incidents Author Knoop, V.L. Van Zuylen, H.J. Hoogendoorn, S.P. Faculty Civil Engineering and Geosciences Department Transport and Planning Date 2009-06-30 Abstract Much of the delays on road networks are caused by incidents. This is partially caused by blockage or closure of lanes, but also by the change of driving behaviour in the remaining lanes. This contribution analyses traffic flow conditions near an incident both microscopically and macroscopically. A theory is proposed to describe drivers’ behaviour, which is tested using traffic data of individual vehicles, collected using a helicopter. A bimodal headway distribution is observed, centred around two mean values, 2 seconds and 4 seconds. To understand the underlying mechanisms a car-following model is fitted to the drivers’ behaviour. The model parameters show that the reaction time is much higher than usual. Using this model-based analysis, we conclude that the incident distracts the drivers and less attention is paid to the driving process. The consequence is that the queue discharge rate for the unblocked lanes is 30% lower than the usual queue discharge rate per lane. To reference this document use: http://resolver.tudelft.nl/uuid:d301ccb3-40ae-4d77-a745-ab278a5d45c2 Source Sino-Dutch Seminar on Transport Development, Beijing, China, 30 June 2009 Part of collection Institutional Repository Document type conference paper Rights (c) 2009 The Author(s) Files PDF 249129.pdf 6.12 MB Close viewer /islandora/object/uuid:d301ccb3-40ae-4d77-a745-ab278a5d45c2/datastream/OBJ/view