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Speed reduction effects over distance of animal-vehicle collision countermeasures: a driving simulator study
Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.ORCID iD: 0000-0001-5322-9827
Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.ORCID iD: 0000-0002-7828-3640
Swedish National Road and Transport Research Institute, Traffic and road users, Human Factors in the Transport System.ORCID iD: 0000-0003-4134-0303
2018 (English)In: European Transport Research Review, ISSN 1867-0717, E-ISSN 1866-8887, Vol. 10, no 2, article id 40Article in journal (Refereed) Published
Abstract [en]

Purpose: This study examined if speed reduction effects from animal-vehicle collision (AVC) countermeasures are merely local or do extend to a wider area, and what implications the results have on road planning practice regarding AVCs.

Methods: Twenty-five drivers drove repeatedly on a 9-km long road stretch in a high-fidelity driving simulator. The development of vehicle speed in the surrounding of an automatic speed camera, a wildlife warning sign and a radio message, were investigated in a full factorial within-subject experiment. The factors wildlife fence (with/without) and forest (dense/open landscape) were also included.

Results: The radio warning message had the largest influence on vehicle speed with a speed reduction of 8 km/h that lasted beyond 1 km and 2 km after the implementation. Eighty-eight per cent of the drivers reported being made extra aware of AVC due to the radio message, which was also associated with stress, insecurity and unsafety. The warning sign reduced vehicle speed by 1.5 km/h, but speed reductions were not significantly reduced 1 km after the implementation. Only 8 % of the drivers felt insecure/unsafe after passing the wildlife warning sign, explaining its limited impact on speed. There were no main effects of the automatic speed camera on vehicle speed at longer distances after implementation.

Conclusions: We recommend that AVC countermeasures should be of various design, occur at various segments along the road, and preferably be adaptive and geo-localized to minimize habituation effects on drivers.

Place, publisher, year, edition, pages
Springer Verlag , 2018. Vol. 10, no 2, article id 40
Keywords [en]
Animal protection, Speed, Decrease, Accident prevention, Simulator (driving), Driver, Reaction (human)
National Category
Vehicle Engineering
Research subject
30 Road: Highway design, 34 Road: Safety devices; 80 Road: Traffic safety and accidents, 81 Road: Accidents
Identifiers
URN: urn:nbn:se:vti:diva-13240DOI: 10.1186/s12544-018-0314-8Scopus ID: 2-s2.0-85052734562OAI: oai:DiVA.org:vti-13240DiVA, id: diva2:1247497
Available from: 2018-09-12 Created: 2018-09-12 Last updated: 2019-04-24Bibliographically approved

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Jägerbrand, AnnikaAntonson, HansAhlström, Christer

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