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Stochastic User Equilibrium Traffic Assignment with Turn-delays in Intersections by Otto Anker Nielsen; Rasmus Dyhr Frederiksen; Nikolaj Simonsen is a Engineering article available to read on EtoBox.

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Turn-delays in intersections contribute signi®cantly to travel times and thus route choices in urban networks. However, turns are dicult to handle in trac assignment models due to the asymmetric Jacobian in the cost functions. The paper describes a model where turn delays have been included in the solution algorithm of Stochastic User Equilibrium (SUE) trac assignment. When the Jacobian is symmetric, SUE minimises the road users' `perceived travel resistances'. This is a probit-model where the links cost-functions of the links are trac dependent. Hereby, overlapping routes are handled in a consistent way. However, no theoretical proof of convergence has been given if the Jacobian is asymmetric, although convergence can be shown probable for model data representing realistic road-networks. However, according to the authors knowledge SUE with intersection delays have not been tested earlier on a full-scale network. Therefore, an essential part of the paper presents practical tests of convergence. Both geometric delays and delays caused by other turns are considered for each turn. Signalised and non-signalised intersections are handled in dierent ways, as are roundabouts. In signalise

Who reads Stochastic User Equilibrium Traffic Assignment with Turn-delays in Intersections?

Author

Otto Anker Nielsen; Rasmus Dyhr Frederiksen; Nikolaj Simonsen

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing; Wiley (ISSN 0969-6016)

Published

1998

Language

EN

Field

Engineering (Physical Sciences)