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原文传递 Operational Review of the ALERT Law Enforcement Vehicle Interface

题名：	Operational Review of the ALERT Law Enforcement Vehicle Interface
作者：	Suzanne E. Lee; Walter W. Wierwille; Christopher S. Schreiner; M. Joseph Moyer; Christopher A. Monk
关键词：	ALERT; Law; Enforcement; Vehicle; Interface
摘要：	Designers at the Texas Transportation Institute (TTI) have developed the Advanced Law Enforcement & Response Technology (ALERT) system for use in police cruisers. The interface for this system is a large touch-screen display along with a keyboard for text entry. The interface was developed using an intuitive usability approach rather than a formal human factors approach. Since this technology is likely to be deployed rapidly if it finds acceptance in those agencies currently testing it, the Federal Highway Administration contracted with the Virginia Tech Transportation Institute (VTTI) to perform baseline and human factors evaluations of the ALERT system. The rationale for this study was that a thorough evaluation might result in opportunities for improvement of the ALERT interface before it was widely deployed. As a first step, a literature review was performed that covered the use of technology in the law enforcement environment, human factors considerations for in-vehicle displays, and relevant design guidelines for in-vehicle displays. Next, a dual-focus study was conducted: a baseline study comparing driver performance when using the ALERT-equipped vehicle with two other vehicles currently used by the Alexandria (Virginia) Police Department (APD); and a human factors evaluation focusing solely on the ALERT system. Both of these studies were conducted using a ride-along methodology with supporting video data collection. The results of the baseline study showed that the ALERT system generally required more frequent and longer glances to the interface in order to perform the same functions than was the case for the other two vehicle types. There were some tasks for which ALERT outperformed the other vehicles types, and these improvements could be generally credited to the larger screen size and more favorable positioning of the ALERT screen. For Code 3 calls (high priority responses), a less cluttered work area was found to reduce visual demand. The human factors evaluation uncovered several usability and error problems with ALERT, including problems with reliability/trust, time delays, user expectations, and human error; suggestions for correcting these problems are provided. Finally, the future of in-vehicle information systems for law enforcement is discussed, with the conclusion that greater standardization of forms and databases nationwide would enhance the commercial viability of systems such as ALERT.
总页数：	ITS America. Meeting (11th : 2001 : Miami Beach, Fla.). ITS connecting the Americas : ITS 2001 : conference proceedings. 2001. pp23
报告类型：	科技报告