Road signage comprehension and overload: The role of driving style and need for closure

Shaun Bortei-Doku, Sigal Kaplan, Carlo Giacomo Prato, Otto Anker Nielsen

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    Abstract

    This study looks at the provision of information via traffic signs and its relation with driving styles, need for closure and socio-economic characteristics of road users. A web-based questionnaire allowed collecting information about traffic signs and road surface markings in 12 traffic locations that were presented in two variations: (i) in the first 6 cases, a first configuration contained information that led to ambiguity about the manoeuvres that were legal and a second configuration added traffic signs to eliminate the ambiguity; (ii) in the second 6 cases, a first configuration presented the road environment without signs and a second configuration added traffic signs to verify information redundancy. Respondents indicated for each location which manoeuvres they deemed legal and how many conflicts they estimated without traffic signs, and safety perception and comfort level improved with the traffic signs. Moreover, respondents reported their socio-economic characteristics and filled two questionnaires about need for closure and driving styles. Completed questionnaires from 753 participants from Hungary with expertise in transport and traffic were analysed via statistical and factor analysis, and results reveal that: (i) road users are heterogeneous in their perception and processing of information, as the number of manoeuvres correctly identified as legal relates to their socio-economic characteristics; (ii) the perception of improvements after the provision of information relates also to the road uses' socio-economic characteristics and their driving style and need for closure; (iii) different amounts of information are sufficient for different road users not to feel uncertain regarding manoeuvres being legal at a certain traffic location.
    Original languageEnglish
    JournalTransportation Research Procedia
    Volume24
    Pages (from-to)442-449
    ISSN2352-1465
    DOIs
    Publication statusPublished - 2017
    Event3rd Conference on Sustainable Urban Mobility - Volos, Greece
    Duration: 26 May 201627 May 2016
    Conference number: 3

    Conference

    Conference3rd Conference on Sustainable Urban Mobility
    Number3
    CountryGreece
    CityVolos
    Period26/05/201627/05/2016

    Keywords

    • Need For Closure Scale
    • Multidimensional Driver Style Inventory
    • Information
    • Driver behavior
    • Traffic signs

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