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原文传递 Development of a Personal Computer-Based Secondary Task Procedure as a Surrogate for a Driving Simulator.

题名：	Development of a Personal Computer-Based Secondary Task Procedure as a Surrogate for a Driving Simulator.
作者：	schrock, s. d.
关键词：	traffic control devices, real time operations, information systems, laptop computers, human factors engineering, visual signals, testing
摘要：	This research was conducted to develop and test a personal computer-based study procedure (PCSP) with secondary task loading for use in human factors laboratory experiments in lieu of a driving simulator to test reading time and understanding of traffic control devices such as changeable message sign (CMS) messages. The importance of this research effort was to show that a PCSP approach could be used to achieve comparable results as a driving simulator approach. Therefore, a larger sample of subjects can be tested with the PCSP at a much lower cost. A secondary loading task was developed for the PCSP where subjects were shown CMS messages while simultaneously deactivating randomly displayed buttons in an on-screen control panel. The secondary task workload could be varied by increasing or decreasing the rate the buttons appeared in the control panel. One-hundred-twenty-six subjects were tested within the PCSP and in a fixed-base driving simulator. The subjects were subdivided into three subgroups to compare performance between the driving simulator and the PCSP for alternative CMS messages. Analysis revealed that essentially the same conclusions were reached with respect to differences in average reading times for each of the three PCSP button display rates in comparison to those reached using the TTI driver simulator. / Supplementary Notes: Sponsored by Southwest Region Univ. Transportation Center, College Station, TX. and Department of Transportation, Washington, DC. University Transportation Centers Program. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0803；188p
报告类型：	科技报告