Alternative Information Signs: Evaluation of Driver Comprehension and Visual Attention

AbstractThe effectiveness of a traffic sign is collectively influenced by the sign’s understandability, legibility distance, glance legibility, and learnability; however, understandability has been repeatedly identified as one of the most important effectiveness measures. This study contributes to best practices for evaluating traffic sign understandability by demonstrating and comparing a variety of online survey questions and immersive driving simulation tasks. These techniques were applied to assess the understandability of five alternative tourist information (TI) signs in Oregon. Several TI sign alternatives were first tested in an online survey with 142 participants, followed by more authentic testing of 42 participants in the Oregon State University Driving Simulator. Sign INFO was correctly understood by 95.7% of the driving simulator subjects. Similar results were obtained for the other testing modalities. Notably, the understandability of TI sign alternatives, including versions with (75.4%) and...

[1]  Robert E. Dewar,et al.  Evaluation of Prototype Highway Tourist Signs for Ontario , 1998 .

[2]  Edwin H. Elkin,et al.  Design and interpretability of road signs. , 1961 .

[3]  M. Cahill,et al.  Interpretability of graphic symbols as a function of context and experience factors. , 1975 .

[4]  Helmut T. Zwahlen,et al.  Recognition of Traffic Sign Symbols in the Field during Daytime and Nighttime , 1991 .

[5]  Michael S. Wogalter,et al.  Comprehension of Pictorial Symbols: Effects of Context and Test Method , 1998, Hum. Factors.

[6]  Barry L. Cole,et al.  Conspicuity of traffic control devices , 1982 .

[7]  Robert E. Dewar,et al.  Rapid Comprehension of Verbal and Symbolic Traffic Sign Messages , 1979 .

[8]  Robert E. Dewar,et al.  Evaluation of Symbolic Public Information Signs , 1981 .

[9]  R. E. Walker,et al.  Comparative accuracy of recognizing American and international road signs. , 1965, The Journal of applied psychology.

[10]  Lewis R. Rhodes,et al.  Driver Understanding of Alternative Traffic Signs , 1997 .

[11]  R. Wade Allen,et al.  A Simulator Evaluation of Age Effects on Symbol Sign Recognition , 1980 .

[12]  Richard W. Pew,et al.  Evaluating Pictographic Symbols: An Automotive Application , 1978 .

[13]  Jeffrey F Paniati.  Legibility and Comprehension of Traffic Sign Symbols , 1988 .

[14]  Harm J. G. Zwaga,et al.  Comprehensibility estimates of public information symbols; their validity and use , 1989 .

[15]  R E Dewar,et al.  The Semantic Differential as an Index of Traffic Sign Perception and Comprehension , 1977, Human factors.

[16]  H. Al-Madani.  Prediction of Drivers' Recognition of Posted Signs in Five Arab Countries , 2001, Perceptual and motor skills.

[17]  R. Dewar,et al.  Reaction Time as an Index of Traffic Sign Perception , 1976, Human factors.

[19]  F. Ramsey,et al.  The statistical sleuth : a course in methods of data analysis , 2002 .

[20]  Y. Benjamini,et al.  THE CONTROL OF THE FALSE DISCOVERY RATE IN MULTIPLE TESTING UNDER DEPENDENCY , 2001 .

[21]  Alan H S Chan,et al.  Effects of sign characteristics and training methods on safety sign training effectiveness , 2010, Ergonomics.

[22]  A. Boyd.  The United States department of transportation , 1968 .

[23]  Lisa Ruhanen,et al.  Volunteering tourism knowledge: A case from the United Nations World Tourism Organization (UNWTO) , 2008 .

[24]  Alan H. S. Chan,et al.  The effects of driver factors and sign design features on the comprehensibility of traffic signs. , 2008, Journal of safety research.

[25]  Alan W. Johnston,et al.  VISIBILITY OF ALPHABETIC AND SYMBOLIC TRAFFIC SIGNS. , 1975 .

[26]  David Shinar,et al.  Traffic sign symbol comprehension: a cross-cultural study , 2003, Ergonomics.

[27]  David Crundall,et al.  Driver's visual attention as a function of driving experience and visibility. Using a driving simulator to explore drivers' eye movements in day, night and rain driving. , 2010, Accident; analysis and prevention.

[28]  Robert E. Dewar,et al.  COMPARISON OF THREE METHODS FOR EVALUATING TRAFFIC SIGNS , 1974 .

[29]  Ralph W. Plummer,et al.  Evaluation of Driver Comprehension of Word versus Symbol Highway Signs , 1974 .

[30]  T Boersema,et al.  Evaluation of a set of graphic symbols. , 1983, Applied ergonomics.

[31]  Erin E Dagnall,et al.  Evaluation of Comprehension and Legibility of International and Domestic Nonstandard Symbol Signs , 2012 .

[32]  David S. Hurwitz,et al.  Permissive Left-Turn Behavior at the Flashing Yellow Arrow in the Presence of Pedestrians , 2017 .

[33]  David S. Hurwitz,et al.  Three- or Four-Section Displays for Permissive Left Turns? , 2014 .

[34]  Bryan J Katz,et al.  COMPREHENSION OF WARNING AND REGULATORY SIGNS FOR SPEED , 2003 .

[35]  R Core Team,et al.  R: A language and environment for statistical computing. , 2014 .

[36]  Tanweer Hasan,et al.  Motorist understanding of traffic signs: a study in Dhaka city , 2010 .

[37]  Robert E. Dewar.  CRITERIA FOR THE DESIGN AND EVALUATION OF TRAFFIC SIGN SYMBOLS , 1988 .

[38]  Harm J. G. Zwaga,et al.  Visual Information For Everyday Use : Design And Research Perspectives , 1999 .

[39]  Timothy C. Coburn,et al.  Statistical and Econometric Methods for Transportation Data Analysis , 2004, Technometrics.