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Safety in the road environment: a driver behavioural response perspective


The existing literature on road safety suggests that a driver's perception of safety is an important influence on their driving behaviour. A challenging research question is how to measure the perception of safety given the complex interactions among drivers, vehicles and the road setting. In this paper, we investigate a sample of driver evaluations of the perception of safety associated with a set of typical road environments. A roundabout was selected as the context for the empirical study. Data was obtained by a computerised survey using the video-captured road and traffic situations. A controlled experiment elicited driver responses when faced with a mixture of attributes that describe the roundabout environment. An ordered probit model identified the contribution of each attribute to the overall determination of the perception of safety. An indicator of perceived safety was developed for a number of typical road and traffic situations and for different driver segments.

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  • Achen CH (1982) Interpreting and using regression, Sage University Paper Series on Quantitative Applications in the Social Sciences, Series No. 07-029. Beverly Hills and London: Sage Publications.

    Google Scholar 

  • Adams J (1995) Risk. UCL Press Limited, University College London.

  • Arndt O (1994) Relationship between roundabout geometry and accident rates, unpublished master thesis, School of Engineering, Faculty of Building Environment and Engineering, Queensland University of Technology, Australia.

    Google Scholar 

  • Arndt O (1998) Relationship between roundabout geometry and accident rates, Infrastructure Design of the Transport Technology Division, The Department of Main Roads, Queesland, Australia.

    Google Scholar 

  • BTCE (1995) Evaluation of the black spot program, Report 90, AGPS, Canberra.

    Google Scholar 

  • Evans L (1994) Driver injury and fatality risk in two-car crashes versus mass ratio inferred using Newtonian mechanics. Accident Analysis and Prevention 26(5): 609–616.

    Google Scholar 

  • Fildes BN & Lee SJ (1993) The speed review: road environment, behaviour, speed limits, enforcement and crashes, Federal Office of Road Safety Report CR127, and Road Safety Bureau of Roads and Traffic Authority of NSW Report CR3/93.

  • FORS (1996) Road safety benchmarking, the 1995 report, Federal Office of Road Safety, Australia.

    Google Scholar 

  • Glewwe P (1997) A test of the normality assumption in the ordered probit model. Econometric Reviews 16(1): 1–19.

    Google Scholar 

  • Haight F (1986) Risk, especially risk of traffic accident. Accident Analysis and Prevention 18(5): 362.

    Google Scholar 

  • Hensher DA (1989) Hierarchical stated response designs and estimation in the context of bus user preferences: a case study, ITS Working Paper Series, WP-OS-57, Institute of Transport Studies, The University of Sydney, Australia.

    Google Scholar 

  • Hensher DA (2000) Advice to modelling on using Limdep for estimation of ordered logit with random effects and mixed logit, unpublished internal report, Institute of Transport Studies, The University of Sydney.

  • ITS Sydney (2000) Transport and Environment Strategy Impact Simulator (TRESIS), Institute of Transport Studies, the University of Sydney.

  • Johnson PA (1996) A test of the normality assumption in the ordered probit model, Working Paper no. 34, Vassar College, New York.

    Google Scholar 

  • Kloeden CN, McLean AJ, Moore VM & Ponte G (1997) Travelling speed and the risk of crash involvement, volume 1-findings, NHMRC Road Accident Research Unit, The University of Adelaide.

  • Lay MG (1990) Handbook of road technology, Second Edition, V2, Traffic and Transport, Director Technical Resources, Roads Corporation of Victoria, Gordon and Beach Science Publishers, New York.

    Google Scholar 

  • Louviere JJ, Hensher DA & Swait FD (2000) Stated Choice Methods: Analysis and Applications in Marketing, Transportation and Environmental Valuation. Cambridge University Press.

  • Maycock G & Hall RD (1984) Accidents at 4-arm roundabouts, Transport and Road Research Laboratory Report 1120, Crowthorne, Berkshire, England.

    Google Scholar 

  • McKelvey RD & Zavoina W (1975) A statistical model for the analysis of ordinal level dependent variables. Journal of Mathematical Sociology 4: 103–120.

    Google Scholar 

  • Nilsson G (1984) Speed, Accident Rates and Personal Injury Consequences for Different Road Types. Sweden: VTI Rapport, Linkoping.

    Google Scholar 

  • Ogden KW (1996) Safer Roads: A Guide to Road Safety Engineering. Sydney: Aldershot, Avebury Technical.

    Google Scholar 

  • RTA (1994) Road Traffic accidents in NSW-1993, Statistical Statement: Year Ended 31 December 1993. Roads and Traffic Authority of New South Wales.

  • RTA (1996) Road User's Handbook. Roads and Traffic Authority.

  • Winship C & Mare RD (1984) Regression models with ordinal variables. American Sociological Review 49: 512–525.

    Google Scholar 

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Wang, B., Hensher, D.A. & Ton, T. Safety in the road environment: a driver behavioural response perspective. Transportation 29, 253–270 (2002).

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  • ordered probit
  • perceived risk
  • roundabouts
  • safety
  • stated preferences