Die Evaluation von Fahrerinformationssystemen mit dem „Lane Change Test“: Ergänzungen zum Normenentwurf ISO/DIS 26022Evaluating Driver Information Systems Using the “Lane Change Test”: Extensions to the Draft International Standard ISO/DIS 26022

i-com ◽  
2009 ◽  
Vol 8 (2) ◽  
pp. 25-29
Author(s):  
Thomas Vöhringer-Kuhnt
Keyword(s):  
Information Systems ◽  
Lane Change ◽  
International Standard ◽  
Draft International Standard ◽  
Lane Change Test

ZusammenfassungIn der öffentlichen Diskussion rücken Einflüsse der Bedienung von Fahrerinformationssystemen auf die Verkehrssicherheit mehr und mehr in den Fokus. Um diese Einflüsse zu überprüfen, sind allgemein anerkannte und standardisierte Methoden nötig, die auch früh im Entwicklungszyklus eingesetzt werden können. Der Lane Change Test ist eine normierte Fahraufgabe zur Ermittlung der Ablenkungswirkung von Zweitaufgaben im Fahrzeug. In einem Normenentwurf sind konkrete Maße zur Beurteilung der Ablenkungswirkung definiert. Im Artikel werden ergänzende Maße vorgeschlagen, die eine absolute Vergleichbarkeit verschiedener Systeme ermöglichen und eine Zertifizierungsgrundlage für sichere Fahrerinformationssysteme liefern können.

Acceptable Levels of Vibration on Ships

1973 ◽  
Vol 10 (02) ◽  
pp. 105-111
Author(s):  
F. Everett Reed
Keyword(s):  
Human Exposure ◽  
Whole Body Vibration ◽  
Whole Body ◽  
Exposure Limits ◽  
Body Vibration ◽  
International Standard ◽  
Time Exposure ◽  
Proficiency Level ◽  
Draft International Standard ◽  
Sound Foundation

The Draft International Standard ISO/DIS 2631 "Guide for the Evaluation of Human Exposure to Whole-Body Vibration" provides an excellent base for setting acceptable levels of vibration on ships.2 A standard for evaluating vibration levels has been needed for some time and the new standard not only provides a sound foundation for evaluating vibration, but also permits the vibration levels to be rated numerically as percentages of the established standard of fatigue-decreased proficiency. The standard is related to frequency, direction of motion, and the time exposure at the different locations in the ship. "Safe exposure limits" and "reduced comfort limits" are defined in terms of percentages of this same fatigue-decreased proficiency level.

Investigating the Effects of Visuospatial Memory Secondary Tasks on LCT Driving Performance

2017 ◽  
Vol 31 (10) ◽  
pp. 1759020 ◽  
Author(s):  
Ling Wu ◽  
Yueqi Hu ◽  
Tong Zhu ◽  
Haoxue Liu
Keyword(s):  
Working Memory ◽  
Memory Task ◽  
Driving Performance ◽  
Visuospatial Memory ◽  
Lane Change ◽  
Secondary Tasks ◽  
Perceived Workload ◽  
Memory Group ◽  
Lane Change Test ◽  
Lane Keeping

Memory demand is associated with increased mental workload. The objective of the present study was to examine the effects of visuospatial memory secondary tasks on driving performance. Memory tasks for the unknown word-figure pairs and recognition tasks for word-figure pairs at two-level difficulties were employed separately to represent working memory’s process and long-term memory’s process. A simulator study was conducted based on the simulation of the standard environment of Lane change test (LCT). The performance of lane keeping, lane change, and secondary tasks was measured by statistical methods. The comprehensive appraisal model was constructed to quantify total driving performance. The results showed that the mean path deviation, steering angle, and lane excursion times increased, and the proportion of correct lane change decreased, with the perceived workload increasing and the total driving performance decreasing in dual-task driving condition. Compared with the simple working memory group, as the difficulty of tasks increased in difficult working memory group, lane change performance degraded and the perceived workload increased. In contrast to difficult working memory group, the performance of lane keeping and lane change increased, while the perceived workload decreased and the total performance increased by about 50% in difficult recognition group. There were few differences between the simple working memory group and simple recognition group. The difficult working memory group had the lowest total driving performance. The results indicate that as the secondary task’s difficulty increases, driving performance will degrade. Performance improves significantly when the working memory process is converted to the recognition process. This trend is more obvious when the memory task assumes to be more difficult.

Sensitivity of the lane change test as a measure of in-vehicle system demand

2011 ◽  
Vol 42 (4) ◽  
pp. 611-618 ◽  
Author(s):  
Kristie L. Young ◽  
Michael G. Lenné ◽  
Amy R. Williamson
Keyword(s):  
Lane Change ◽  
Vehicle System ◽  
Lane Change Test

Theory of Ontology and Meta-Modeling and the Standard

2010 ◽  
pp. 58-101
Author(s):  
Keqing He ◽  
Chong Wang ◽  
Yangfan He ◽  
Yutao Ma ◽  
Peng Liang
Keyword(s):  
Information Systems ◽  
Semantic Interoperability ◽  
Software Component ◽  
Information Resources ◽  
International Standard ◽  
Modeling Methodology ◽  
Effective Exchange ◽  
Meta Modeling ◽  
Semantic Ontology ◽  
Semantic Interoperation

With the continuous development and rapid progress of information techniques, complexity and scale of information systems are expanding increasingly, which consequently brings our research focus on how to ensure the effective exchange of information and efficient interconnection between each part of a information system. However, different modeling paradigm, languages and platforms cause grammatical and semantic diversity to the existing information resources, a challenging approach to information resources management is needed to promote deep sharing of those information resources and implement rapid integration based on them. To realize semantic interoperation between diverse information systems and resources, the authors combine meta-modeling methodology in software engineering and ontology from philosophy to exploit a novel methodology named Theory of Ontology & Meta-modeling. Based on the methodology, the authors contributed to an international standard project ISO/IEC 19763- 3: Metamodel for ontology registration since 2003, which was officially published as an international standard in Dec, 2007. Furthermore, we developed a Management and Service platform for Semantic Interoperability on Manufacturing Informationalization Software Component Repository (SCR). It can support ontology-based software component attributes classification, registration and management using ISO/IEC 19763-3 standard, and implement semantic (ontology) based software component query and retrieval. Based on above mentioned techniques, this platform can facilitate the management of semantic interoperability, which provides the reliable infrastructure for the reusing and sharing of heterogeneous software component resources.

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