Verkehrstechnische Optimierung des Linksabbiegens vom nachgeordneten Strassennetz auf die Autobahn zur Vermeidung von Falschfahrten. [Technological optimization of left turns from the subsidiary road network on highways to avoid wrong-way driving.] B...

Author(s)
Maier, R. Pohle, M. Schmotz, M. Knote, T. Nirschl, G. & Erbsmehl, C.
Year
Abstract

Accidents caused by wrong-way driving are very rare events, but which generally have a particularly high accident severity. Recent studies from Germany show that often wrong way driving begins by the false left turn from the subsidiary road onto the motorway. In this research project the driving behaviour at junctions with common and various redesigned pavement markings were evaluated at on-site junctions as well as within a driving simulator. As a result, optimized designs of pavement markings could be recommended. The research project focussed on signalized and on unsignalized junctions as well. The traffic surveys of the on-site junctions were video-based. The raised driver and environment-specific data is used to describe and analyse the behaviour during the phase of orientation and the turning manoeuvre. The results of the driving behaviour within the driving simulator were tested on systematic effects within particular groups. As a result of the behaviour studies on-site and within the driving-simulator a pavement marking for unsignalized junctions could be recommended which contains a shifted holding line of the left turn lane further into the section area. An additional left-turn arrow beyond the holding line and an inner turn line in combination with further adjustments (holding line of the intersecting motorway exit with an additional barrier line, shifted "pass-by-on-right" sign with added obstruction marker) support the road users to ensure a correct left-turn-manoeuver. At signalized junctions a shifted stop line further into the section is recommended as well and added by the mentioned adjusted features at unsignalized junctions. With regard to the recommendations within the guidelines for traffic signals (RiLSA, 2010) the location of the traffic signals have to be coordinated with the road traffic authority in any case. The driving behaviour of the investigated junctions has shown that the recommended pavement markings support an intuitively correct left-turn-manoeuver and therefore avoid wrong-way driving. (Author/publisher)

Publication

Library number
20160348 ST [electronic version only] /73 /82 /
Source

Bergisch Gladbach, Bundesanstalt für Strassenwesen BASt, 2015, 64 p., 35 ref.; Berichte der Bundesanstalt für Strassenwesen : Verkehrstechnik ; Heft V 262 - ISSN 0943-9331 / ISBN 978-3-95606-196-7

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