Download or read book Development of Manuals for the Effective Use of Variable Message Signs Final Report written by John S. Miller and published by . This book was released on 1995 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive research effort to develop operator's manuals for variable message signs (VMSs) was undertaken to improve the operations of both portable and permanent (fixed-site) VMSs in Virginia. This report describes the development of two manuals, the Permanent VMS Operator's Manual and the Portable VMS Operator's Manual which will be published separately. These manuals were based on information obtained from the literature, VMS operators, and motorists. Issues addressed by the manuals include when a VMS should be used, where a portable VMS should be placed, and the design of the VMS message. The manuals are not simply a list of pre-defined messages. They are a series of concise modules guiding the operator through the thought process required to use a VMS effectively. The operator follows a logical decision tree from module to module, to achieve the best placement and best message for a VMS. Effective VMS use actually requires a complex thought process, despite the apparent simplicity of the messages. The manuals include essential material about VMS operation. Based on theoretical calculations and motorists' experiences, it is strongly recommended that a VMS use no more than two message screens. A single message screen is preferred. VMSs should be used only to advise drivers of changed traffic conditions and convey specific traffic information concisely. Due to limited information capabilities, VMSs should be used in conjunction with other means of communication such as highway advisory radio and static signs. Most importantly, it is crucial that credibility be maintained. Incorrect information can have extreme consequences in terms of VMS effectiveness.
Download or read book Highway Research Abstracts written by and published by . This book was released on 1994 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changeable Message Sign Displays During Non incident Non roadwork Periods written by Conrad L. Dudek and published by Transportation Research Board. This book was released on 2008 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graduate Student Papers on Advanced Surface Transportation Systems written by and published by . This book was released on 1994 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Uniform Traffic Control and Warning Messages for Portable Changeable Message Signs Final Report written by Richard L. Knoblauch and published by . This book was released on 1995 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual of Guidelines for Inspection of ITS Equipment and Facilities written by Kaan Özbay and published by . This book was released on 2008 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Policies for Use of Changeable Message Signs in Highway Work Zones written by Siim Soot and published by . This book was released on 1999 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Portable Changeable Message Sign (PCMS) systems used in work zones are programmable supplementary traffic control devices that display messages composed of letters, symbols or both and provide information and instructions to the traveling public approaching work zone activities. The study seeks to develop warrants and criteria for PCMS deployment in Illinois highway work zones. It is recommended that PCMS systems be used during long- and intermediate-term stationary work, for traffic control through incident areas, and in projects where advance-time notification is needed. The discussion focuses on spacing criteria, number of signs required, sign visibility and message legibility, text alignment, distance criteria, message length, duration and type, project-level operational guidelines, message storage and dissemination, repair, maintenance and utility costs, as well as control and coordination issues. The study concludes that additional research is needed in order to: develop a comprehensive standardized statewide database of messages and message abbreviations; develop a comprehensive repository with information about the technology of the various components of the PCMS units; coordinate PCMS units used in highway work zones with a corridor or regional ATMS system; and maintain information about the use of a PCMS unit in a work zone project and possibly integrate it with other relevant information in a management system.
Download or read book Intelligent Transportation Systems written by Robert Gordon and published by Springer. This book was released on 2015-11-02 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intelligent Transportation Systems: Functional Design for Economical and Efficient Traffic Management provides practical guidance on the efficient use of resources in the design of ITS. The author explains how functional design alternatives can meet project objectives and requirements with optimal cost effectiveness and clarifies how transportation planning and traffic diversion principles relate to functional ITS device selections and equipment locations. Methodologies for translating objectives to functional device types, determining device deployment densities and determining the best placement of CCTV cameras and message signs are provided, as are models for evaluating the benefits of design alternatives based on traffic conditions. Readers will learn how to reduce recurrent congestion, improve incident clearance time in non-recurrent congestion, provide real-time incident information to motorists, and leverage transportation management center data for lane control through important new active transportation and demand management (ATDM) methods. Finally, the author examines exciting developments in connected vehicle technologies, exploring their potential to greatly improve safety, mobility and energy efficiency. This resource will greatly benefit all ITS designers and managers and is of pivotal importance for operating agencies performing evaluations to justify operational funding and system expansions.
Download or read book Intelligent Transport Systems written by Roger Stough and published by Edward Elgar Publishing. This book was released on 2001 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stough (public policy, George Mason U.) brings together nine contributions that evaluate the prospects for Intelligent Transport Systems (ITS) to solve the dilemma caused by increasing demands for mobility combined with reluctance to continue to build traditional transportation infrastructure such as highways. These systems encompass a complex of information technologies. The chapters offer case studies of systems deployed in the Washington D.C. metropolitan area and use multi-criteria methodologies to evaluate the cost- effectiveness of the programs. Electronic tolling systems, variable message signs, automatic truck rollover warning systems, and several other technologies are discussed and evaluated. The final chapter applies simulation modeling to estimate the effects the addition of several ITS technologies will have on congestion and mobility in the Northern Virginia region. c. Book News Inc.
Download or read book Uniform Traffic Control and Warning Messages for Portable Changeable Message Signs written by and published by . This book was released on 1995 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to develop and test word and symbol traffic control and hazard messages for portable changeable message signs (PCMSs). The messages were designed for the standard PCMS with three lines of eight characters. First, a comprehensive listing of candidate PCMS messages was developed. This was done by interviewing State highway engineers, surveying PCMS manufacturers and questioning motorists. In those situations where subjects did not express an overwhelming sign preference additional field testing was done. The detection distances of the candidate messages were determined using a PCMS under both day and night conditions.
Download or read book Creating Effective Variable Message Signs written by Dennis R. Proffitt and published by . This book was released on 1998 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report addresses the human factors issues related to the reading and comprehension of variable message sign (VMS) messages. A review of the literature was conducted on factors that affect how people read VMSs. Several topics were reviewed. The first topic was literacy. Since reading literacy is not a requirement for obtaining a driver's license, VMS composition should reflect the varied reading competence levels of motorists. It was found that about 25% of Virginians over the age of 16 are weak readers and will likely encounter problems reading VMSs. The second topic addressed how people read. Reading is an interactive process that derives much of its speed and accuracy from implicit knowledge acquired through familiarity. This implies that VMS messages should present familiar, standardized content whenever possible. A review of the literature on warning signs was the third topic. Effective warning signs should have several properties: Short, concise messages are both easier to read and more likely to be read. Signal words, such as CAUTION, are not effective. Finally, areas for further research were identified. Symbolic messages and abbreviations are worthy of further investigation as they have the potential for easy recognition, provided they are familiar to motorists and can be accommodated by the VMS. In addition, although the MUTCD advises angling the VMS away from the roadway to reduce headlight glare, angling the VMS toward the roadway could be desirable for increasing readability. In both these areas, theoretical and practical work is needed. The report recommends that these human factors characteristics and limitations be taken into consideration in the deployment of VMSs and in the composition of their messages.
Download or read book Special Report written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1971 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Report Highway Research Board written by National Research Council (U.S.). Highway Research Board and published by . This book was released on with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1996-10 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resources in Education written by and published by . This book was released on 1998 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safety and Environmental Design Considerations in the Use of Commercial Electronic Variable message Signage Final Report written by Jerry Wachtel and published by . This book was released on 1980 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Performance written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 2005 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Transportation Research Record contains 22 papers on human performance or simulation and visualization. Among the topics discussed are the following: crash involvement of young novice drivers; factors affecting the safety of young and older drivers; behavioral classification of passing maneuvers; in-vehicle text messages; measuring performance for the Federal Aviation Administration's safety oversight system; driver eye glance behavior during lane change decision, lane changes, and straight-ahead driving; driver fatigue, distraction, and performance; eye glance behavior during in-vehicle secondary tasks; multifunction interfaces in vehicles; interface workload of in-vehicle information systems; human-machine interface design for intelligent speed adaptation; an automated real-time driver warning system; fuzzy sets for evaluating driver perception of variable message signs; video advertising signs and traffic safety; message display formats of portable variable message signs; in-vehicle Global Positioning System data for evaluating deceleration at stop sign-controlled intersections; simulator evaluations of driving with vision impairments and visual aids; a driving simulator for work zone design; the application of visualization to transportation systems; a four-dimensional interactive visualization system for transportation management and traveler information; and virtual reality visualization of microscopic traffic simulations.
