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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/25108

Title: Safety implications of co-locating road signs: a driving simulator investigation
Authors: Filtness, Ashleigh J.
Larue, Gregoire S.
Schramm, Amy
Fuller, Joshua
Rakotonirainy, Andry
Han, Clarissa
Cairney, Peter
Keywords: Road sign
Driving simulator
Direction sign
Variable message sign
Variable speed limit sign
Issue Date: 2017
Publisher: © Elsevier
Citation: FILTNESS, A.J. ... et al, 2017. Safety implications of co-locating road signs: a driving simulator investigation. Transportation Research Part F: Psychology and Behaviour, 47, pp. 187–198.
Abstract: Background As road complexity increases the requirement for number of road signs also increases, although the amount of road side space does not. One practical strategy to address this is to present multiple road signs on the same gantry (sign co-location). However, there is very little research on the safety implications of this practice. Method 36 participants (mean age = 42.25 years, SD = 13.99, 18 females) completed three driving simulator scenarios, each scenario had a different sign co-location condition: no co-location, dual co-location and triple co-location. Each scenario presented similar information using direction signs, variable message signs and variable speed limit signs, under. Each drive included standard motorway driving (100 km/h speed zone) in free flow traffic and one emergency event where a lead vehicle suddenly braked. The scenario order was counterbalanced and the emergency event vehicle varied. Results Overall, there was no impact of co-locating signs on general driving performance. No significant difference was observed between conditions for reaction time and minimum headway in response to the emergency event. Participants were able to correctly choose their destination whether the signs were co-located or not. Discussion For the particular configuration of signs tested there is no evidence that co-location negatively impacts driving performance. However, there may be some implications for travel speed and the manner in which the emergency event is responded to. Future work should confirm the findings on real roads. These findings provided support for sign co-location as a practical and safe option for displaying multiple road signs in a confined area.
Description: This paper is closed access until 17th May 2018.
Version: Accepted for publication
DOI: 10.1016/j.trf.2017.04.007
URI: https://dspace.lboro.ac.uk/2134/25108
Publisher Link: https://doi.org/10.1016/j.trf.2017.04.007
ISSN: 1369-8478
Appears in Collections:Closed Access (Design School)

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