Cyclists, left turning drivers and the impact of road infrastructure

Sarah Chancellor-Goddard, Marilyn Johnson

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


Intuitive infrastructure is key to providing a safe road environment, particularly to intersections where drivers and cyclists need to share the space. This interaction can become confusing when the cyclist is continuing to travel straight and the driver is turning left. This study is a naturalistic observational study of four signalised intersections in Melbourne, Victoria. The study extends previous research and is the first to explore behaviour at complex intersections with multiple dedicated left turn lanes and the role of an advanced signal phase for cyclists. In total, 48 hours of footage were recorded. In this paper, a subset (12 hours, n=230 interactions) were analysed in detail. Interactions were consistent with highly predictable cyclist behaviour at the sites with a bike lane compared to high variation at the site with no cycling infrastructure. A further 98 interactions were avoided at those sites with an advanced green signal phase for cyclists. Benefits from providing separation between cyclists and drivers may be achievable through infrastructure, including both dedicated bicycle lanes and advanced signal phasing for cyclists.

Original languageEnglish
Title of host publicationAustralasian Transport Research Forum 2019 Proceedings
Number of pages3
Publication statusPublished - 2019
EventAustralasian Transport Research Forum 2019 - Hyatt Hotel, Canberra, Australia
Duration: 30 Sept 20192 Oct 2019
Conference number: 41st (Proceedings)


ConferenceAustralasian Transport Research Forum 2019
Abbreviated titleATRF 2019
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