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TitleEvaluation of Centreline ATLM along Curves in Mountainous Roads
AuthorsMongiardini M, Stokes CS, Woolley JE
TypeConference Paper
AbstractCentreline Audio Tactile Line Marking (ATLM) was installed on a popular narrow road in the Adelaide foothills. A before-after evaluation was conducted to assess the ATLM potential for influencing lane position/crossing and speed along four trial curves. Vehicle lane position and speed at those curves, and between-site travel times were analysed. .

Post treatement, all vehicle types tended to safely shift towards the edgeline along right-hand curves. However, variability along left-hand curves existed amongst the four sites. Generally, the treatment did not appear to reduce lane crossing frequency on curves, except at one site. Centreline ATLM did not appear to induce a speed decrease along curves. Nonetheless, a slight reduction of the average travel speed along the treated route may indicate a generalised speed calming effect.

The study suggests merit for centreline ATLM along curves regarding lane positioning, but a limited effect on voluntary lane crossing and speed.

Conference Name2022 Australasian Road Safety Conference
Conference AbbreviationARSC22
Conference LocationChristchurch, New Zealand
Conference Date28-30 September 2022

Mongiardini M, Stokes CS, Woolley JE (2022). Evaluation of Centreline ATLM along Curves in Mountainous Roads. 2022 Australasian Road Safety Conference, Christchurch, New Zealand, 28-30 September 2022.