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The goal of the TravTek Camera Car Study was to furnish a detailed evaluation of driving and navigation performance, system usability and safety for the TravTek system. To achieve this goal, an instrumented camera car was developed to provide comprehensive driving performance and behavior measurement capability. Six navigation test configurations were evaluated in the camera car study. The following configurations were tested: TravTek route-map and symbolic guidance- map displays (individually and in conjunction with supplementary voice guidance), paper map, and paper textual direction list.
The TravTek safety study entailed the collection of multiple safety- related measures across five different empirical studies. The studies included the Rental User Study, Local User Study, Yoked Driver Study Orlando Traffic Network Study, and the Camera Car Study. The studies provided vehicle collision data, driver/vehicle performance measures observer measures, and driver subjective measures.
This report first presents an evaluation of the Rental and Local User studies associated with the TravTek advanced traveler information and traffic management system (ATIS/ATMS) project. The focus of the evaluation studies was to obtain data on user perception and performance related to use of the system components in the TravTek vehicles. The vehicles were equipped with route planning, route guidance, traveler information, moving maps and turn-by-turn guidance displays. Evaluation data used the following measures: perceptions of utility, ease of use, safety, driver workload, frequency of system use, and estimates of willingness-to-pay. Results are reported.
Certain activities and events both inside and outside a vehicle can distract drivers and lead to degraded performance. New technologies- such as entertainment, communication, and driver assistance systems- play a significant role in distraction. This unique volume defines driver distraction, discusses various causes, and explains how to measure acceptable and unacceptable levels of distraction. Several chapters address measurement techniques based on performance and epidemiological studies. Most importantly, the text explores ways to mitigate driver distraction as well as countermeasures including vehicle design and effective legislation.