Users’ Perception And Reported Effects Of Long-term Access To In-Vehicle Traffic Information Services Mediated Through Nomadic Devices (original) (raw)
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The effects of travel information presentation through nomadic systems on driver behaviour
European Transport Research Review, 2009
Introduction The aim of this study was to investigate the effects of providing travel information to drivers about a traffic jam ahead and a potential detour or short-cut. Two groups of participants, native and non-native Dutch speakers were requested to drive in a driving simulator under both calm and dense traffic conditions. Method Travel-information was presented by means of three nomadic systems; in visual mode on a PDA and on a mobile phone via SMS, and through a mobile phone in auditory mode via the (simulator mock-up) vehicle’s audio system. Results The results showed that with regard to usability the SMS message was evaluated worse than the other two systems, while with respect to cognitive processing, SMS caused more subjective (i.e. experienced) workload than the other two systems. Native participants believed any information-providing system to be less useful than non-native participants did. All participants remembered more of the information when traffic was dense wher...
The Open Transportation Journal
Background: This paper reports on the methodology undertaken and some results achieved within a study of drivers using aftermarket and nomadic devices (the TeleFOT project). Objective: To evaluate the methodology for conducting Field Operational Tests for Information and Communication Technology whilst also providing an example of the method applied in the context of mobility within the TeleFOT project. Methods: A ‘Top down, bottom up’ approach to the derivation of research questions and hypotheses is described. Statistical analysis has been undertaken on data collected through Field Operational Tests and Travel Diaries considering the impact of information functions (such as navigation, traffic information and green driving) upon journey length. Results: A summary of the results relating specifically to how the length of a journey can be affected by information functions indicates that Navigation and Traffic information can reduce the length of journeys whilst Green Driving functio...
The study presents findings regarding drivers' patterns of use, attitude towards, and reported effects of access to mature nomadic navigation support systems. Three different systems were tested by 582 drivers in four-field operational tests for a period of six months. A majority of the participants used the support system for trips where the route/ destination was unfamiliar but there were also other use scenarios. The main benefits entailed convenience and comfort. Reported effects involved increased possibilities to choose the route according to preferences; a decrease in the time it took to reach destinations and in the distance covered to reach the destination. One in four reported a decrease in fuel consumption attributed an increased compliance with speed limits and/or that driving around and searching for the correct route to reach the desired destination could be avoided. A majority reported 'no change' regarding the number of journeys made by car. Reported effects (whether increases or decreases) were however smaller than expected before the trial.
Travelers' preferences for in-vehicle information systems: An exploratory analysis
Transportation Research Part C: Emerging Technologies, 1995
A sample of travelers' preferences toward in-vehicle traffic information systems was undertaken and appropriate statistical models were estimated. Specifically, ordered logit and regression analyses were conducted to quantify travelers' ratings of the importance of in-vehicle system attributes, and the distance ahead that they prefer to be notified of various types of information provided by in-vehicle systems. Model estimation results show that travelers' socioeconomics, habitual travel patterns, commute congestion levels and attitudes toward in-vehicle technologies are significant determinants of travelers' importance ratings and the preferred distance ahead of in-vehicle system information. These model results provide important information for both marketing and design of in-vehicle information systems.
User Uptake of Nomadic and After Market Devices. Experiences from the TeleFOT Project
Procedia - Social and Behavioral Sciences, 2012
The overall objectives of the TeleFOT project are to evaluate the impact of different functions provided by nomadic and after market devices (ND) on four impact areas: efficiency, environment, mobility and safety. The fifth area to be investigated is user uptake. The paper presents preliminary results from one of 13 field operational tests (FOTs), the Swedish L-FOT2 focusing on user uptake. One device and three functions were tested: a Green Driving Support System (GD), a Navigation Support System (NAV) and a Traffic Information Service (TI). Preliminary results indicate the importance of addressing the relative rather than the absolute benefits of a function, i.e. the benefits relative other functions offered by other channels/devices and, further, that the specific characteristics and contents of a function need to be analysed in depth order to understand user uptake.
Lecture Notes in Computer Science
This paper describes a study where drivers' responses to an invehicle information system were tested in high and low density traffic. There were 17 participants in a study that was run using a driving simulator. Data was gathered for a comparison of how drivers react to an in-vehicle information system in low density traffic, complex traffic, and without system. Participants were also asked for their subjective evaluation of trust of the system and how they perceived it influenced their driving performance. Results show gender differences for both driving performance and attitude.
Impacts of Advanced Travel Information Systems on Travel Behaviour: Smartmoov’ case study
2014
What are the effects of multimodal real-time information on travel behaviour? Large amounts of money have been invested to implement in the cities such systems, but until now few assessments have been done to verify if it contributes to a real modal shift and, in the higher end, to a more sustainable mobility. This research aims at thoroughly assessing the effectiveness of multimodal real-time information systems, pointing out the limitations before their use and recording the changes induced on the travel behaviour. Two wave questionnaires were designed and administered to a sample of 46 persons before and after a five months experimentation where a multimodal real-time information application for Smartphones (Smartmoov') was tested after its implemented in the city of Lyon, in 2013. Besides the questionnaires twelve focus groups were conducted with the same sample, six before and six after the experimentation. The survey was aimed at investigating the potential changes of trav...
In-laboratory experiments to investigate driver behavior under advanced traveler information systems
Transportation Research Part C-emerging Technologies, 1994
In-laboratory experimentation with interactive microcomputer simulation is a useful tool for studying the dynamics of driver behavior in response to advanced traveler information systems. Limited reaI-world implementation of these information systems has made it difficult to observe and study how drivers seek, acquire, process, and respond to real-time information. This paper describes the design and preliminary testing of an interactive microcomputer-based animated simulator, developed at the University of California, Irvine, to model pre-trip and enroute driver travel choices in the presence of advanced traveler information systems. The advantages of this simulator are realized in its versatility to model driver decision processing while presenting a realistic representation of the travel choice domain. Results from a case study revealed that increased driver familiarity with travel conditions and network layout reduces driver reliance on information systems and influences drivers diversion behavior.
Transportation Research Part C: Emerging Technologies, 1995
This paper analyzes the responses from two nationwide surveys designed to obtain user information requirements for the design of advanced traveler information systems (ATIS) and commercial vehicle operations (CVO) with respect to commercial system operators (dispatchers) and commercial vehicle drivers. A total of 673 returned surveys (348 dispatcher surveys and 325 commercial driver surveys), were used in the analysis. Mathematical models were developed, using a binomial logit to predict whether the commercial driver or dispatcher would use an intelligent transportation system, and an ordered probit to estimate the importance of information (i.e. route and navigation, roadside services, personal communication and road and traffic information) to be provided by in-vehicle information systems. The results of this study provide guidelines for the design of information systems and help define informational requirements for users of ATIS/CVO.