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Proceedings ArticleDOI

Modeling Perceived Accuracy of Traveler Information Systems under Mixed Traffic Conditions

TL;DR: The results indicate that the socioeconomic characteristics and attributes related to traveler information play a significant role in developing a positive perception about information accuracy.
Abstract: Advanced Traveler Information Systems (ATIS) assists travelers in making informed travel decisions, thereby helping them to avoid delays and hazardous situations. This improves the overall traffic safety and performance of the network. Even if the information system provides accurate and reliable information, if the travellers do not perceive the system quality positively, it might lead to less compliance and consultation by travellers. In this study, we identified the factors that influence the perceieved accuracy of traveler information delivered through Variable Message Sign (VMS) boards. A binary logit model of perceived accuracy is developed using data collected by revealed preference questionnaire survey. The results indicate that the socioeconomic characteristics and attributes related to traveler information play a significant role in developing a positive perception about information accuracy.
References
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Journal ArticleDOI
TL;DR: In this article, a review of contemporary conceptual ideas and empirical findings on the use of travel information (services) and their effects on travellers' choices is presented, integrating behavioural determinants such as the role of decision strategies with manifest determinants, such as trip contexts and socio-economic variables into a coherent framework of information acquisition and its effect on travelers' perceptions.

231 citations

Journal ArticleDOI
TL;DR: In this paper, a route-choice experiment with 36 participants, involving 20 repetitions under three different levels of information accuracy, was conducted to investigate the impact of travel time uncertainty.
Abstract: Advanced Travel Information Systems (ATISs) are designed to assist travellers in making better travel choices by providing pre-trip and en-route information such as travel times on the relevant alternatives. Travellers’ choices are likely to be sensitive to the accuracy of the provided information in addition to travel time uncertainty. A route-choice experiment with 36 participants, involving 20 repetitions under three different levels of information accuracy was conducted to investigate the impact of information accuracy. In each experiment respondents had to choose one of three routes (risky, useless and reliable). Provided information included descriptive information about the average estimated travel times for each route, prescriptive information regarding the suggested route and experiential feedback information about the actual travel times on all routes. Aggregate analysis using non-parametric statistics and disaggregate analysis using a mixed logit choice model were applied. The results suggest decreasing accuracy shifts choices mainly from the riskier to the reliable route but also to the useless alternative. Prescriptive information has the largest behavioural impact followed by descriptive and experiential feedback information. Risk attitudes also seem to play a role. The implications for ATIS design and future research are further discussed.

169 citations


"Modeling Perceived Accuracy of Trav..." refers background in this paper

  • ...[6], [8] modelled the impact of information accuracy on traveller's route choice behaviour and risk perception....

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  • ...The accuracy and reliability of the information provided are found to be two important factors determining traveller behaviour under ATIS information [3], [6]....

    [...]

Journal ArticleDOI
TL;DR: While information seems to assist individual travellers in coping with uncertainty, the impacts relating to collective behaviour on networks remain unclear and research suggests that ICTs will enable the design of persuasive information systems that motivate cooperative and efficient use of the transportation network beyond what is possible today.

128 citations


"Modeling Perceived Accuracy of Trav..." refers background in this paper

  • ...[6], [8] modelled the impact of information accuracy on traveller's route choice behaviour and risk perception....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a route choice model is proposed that takes into account the information acquisition and reference process, and the empirical relationship between drivers' reaction to multiple information sources, causal factors latent psychological ones, traffic conditions at the time of traveling and the accuracy of traffic information available.
Abstract: This study aims at analyzing drivers' behavior in acquiring and using traffic information in an environment with multiple information sources. Accordingly, information acquisition and reference models are developed in an effort to show the empirical relationship between drivers' reaction to multiple information sources, causal factors latent psychological ones, traffic conditions at the time of traveling and the accuracy of traffic information available. A route choice model is proposed that takes into account the information acquisition and reference process. Model validity is investigated using data collected on the Tokyo Metropolitan Expressway, which has four different types of information sources.

123 citations

Book
01 Nov 2017
TL;DR: This book introduces market research, using commonly used quantitative techniques such as regression analysis, factor analysis, and cluster analysis using Stata, a very popular statistical software package that allows users to run statistical analyses by means of menus and directly typed commands called syntax.
Abstract: This book introduces market research, using commonly used quantitative techniques such as regression analysis, factor analysis, and cluster analysis. These statistical methods have generated findings that have significantly shaped the way we see the world today. Unlike most market research books, which use SPSS (we’ve been there!), this book uses Stata. Stata is a very popular statistical software package and has many advanced options that are otherwise difficult to access. It allows users to run statistical analyses by means of menus and directly typed commands called syntax. This syntax is very useful if you want to repeat analyses or find that you have made a mistake. Stata has matured into a user-friendly environment for statistical analysis, offering a wide range of features.

44 citations


"Modeling Perceived Accuracy of Trav..." refers background in this paper

  • ...60 is usually considered as the lower limit of acceptability in exploratory studies [15]....

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Trending Questions (1)
How does advanced traveler information systems affect traveler behavior?

The paper does not provide a direct answer to the query. The paper discusses the factors that influence the perceived accuracy of traveler information systems, but it does not specifically address how advanced traveler information systems affect traveler behavior.