Download or read book Understanding the Dynamics of Truck Traffic on Freeways by Evaluating Truck Passenger Car Equivalents PCE in the Highway Capacity Manual HCM 20120 written by Susi Marlina and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Passenger Car Equivalents on Urban Freeways written by Edmond L. Seguin and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a study to determine passenger car equivalents (PCEs) of trucks and other vehicles on urban freeways. Field data collection used the Traffic Evaluator System (TES). Samples of weaving, merge, diverge, and basic freeway sections were studied in Houston, Dallas and Atlanta. Detailed vehicle classification, headway, speed, and spacing were developed for over 287,000 vehicles.
Download or read book Passenger car Equivalents of Trucks in Composite Traffic Final Report written by Yi-chin Hu and published by . This book was released on 1981 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Passenger Car Equivalents for Rural Highways written by Wiley D. Cunagin and published by . This book was released on 1982 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Passenger Car Equivalent Factors for Level Freeway Segments Operating Under Moderate and Congested Conditions written by Umama Ahmed and published by . This book was released on 2010 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significant impact Heavy Vehicles (HV) have on freeway operations has been identified since the first edition of the Highway Capacity Manual (HCM). The method of incorporating their impact in freeway capacity calculations has changed through the years. The HCM 2000 used Passenger Car Equivalent (PCE) values and percent of trucks/buses and Recreational Vehicles (RV) to account for HV effect on capacity. However PCE values in the most recent HCM edition rely on a limited field database and extensive simulation runs based on this information; they were calibrated on s̀teady-flow' traffic operations. The objective of this effort was to indentify and quantify HV characteristics that have an impact of freeway throughput at various congestion levels on level, urban freeways using 1.2 million individual vehicle observations, with an emphasis on operations at LOS E and F. It was desired to use the products of this effort as recommended inputs for future simulation runs of congested freeway flow conditions. Passenger Car (PC) and HV headways were found to increase with HV presence in the traffic stream. A similar pattern was found for the PCE factor. The PCE value, under congested conditions and more than 9% HV presence, was found to be 1.76, which is higher than the HCM 2000-recommended value of 1.5 for level freeway sections. Also, passenger car was found to have the effect of more than 1 PC at congested condition with high HV presence.
Download or read book Freeway Capacity Analysis Procedures written by and published by . This book was released on 1979 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Incorporating Truck Analysis Into the Highway Capacity Manual written by Richard Gerhard Dowling and published by . This book was released on 2014 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Freight Research Program (NCFRP) Report 31: Incorporating Truck Analysis into the Highway Capacity Manual presents capacity and level-of-service techniques to improve transportation agencies' abilities to plan, design, manage, and operate streets and highways to serve trucks. The techniques also assist agencies' ability to evaluate the effects of trucks on other modes of transportation. These techniques are being incorporated into the Highway Capacity Manual, but will be useful to planners and designers working on projects with significant truck traffic."--Publisher description.
Download or read book Regulation of Weights Lengths and Widths of Commercial Motor Vehicles written by Transportation Research Board and published by National Academies Press. This book was released on 2005-07-14 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB Special Report 267 - Regulation of Weights, Lengths, and Widths of Commercial Motor Vehicles recommends the creation of an independent public organization to evaluate the effects of truck traffic, pilot studies of new truck designs, and a change in federal law authorizing states to issue permits for operation of larger trucks on the Interstates. In 1991, Congress placed a freeze on maximum truck weights and dimensions. Some safety groups were protesting against the safety implications of increased truck size and weight, and the railroads were objecting to the introduction of vehicles they deemed to have an unfair advantage. Railroads, unlike trucking firms, must pay for the capital costs of their infrastructure. The railroads contend that large trucks do not pay sufficient taxes to compensate for the highway damage they cause and the environmental costs they generate. Although Congress apparently hoped it had placed a cap on maximum truck dimensions in 1991, such has not proven to be the case. Carriers operating under specific conditions have been able to seek and obtain special exceptions from the federal freeze by appealing directly to Congress (without any formal review of the possible consequences), thereby encouraging additional firms to seek similar exceptions. In the Transportation Equity Act for the 21st Century, Congress requested a TRB study to review federal policies on commercial vehicle dimensions. The committee that undertook the study that resulted in Special Report 267 found that regulatory analyses of the benefits and costs of changes in truck dimensions are hampered by a lack of information. Regulatory decisions on such matters will always entail a degree of risk and uncertainty, but the degree of uncertainty surrounding truck issues is uunusually high and unnecessary. The committee concluded that the uncertainty could be alleviated if procedures were established for carrying out a program oof basic and applied research, and if evaluation and monitoring were permanent components of the administration of trucking regulations. The committee recommended immediate changes in federal regulations that would allow for a federally supervised permit program. The program would permit the operation of vehicles heavier than would normally be allowed, provided that the changes applied only to vehicles with a maximum weight of 90,000 pounds, double trailer configurations with each trailer up to 33 feet, and an overall weight limit governed by the federal bridge formula. Moreover, enforcement of trucks operating under such a program should be strengthened, and the permits should require that users pay the costs they occasion. States should be free to choose whether to participate in the permit program. Those that elected to do so would be required to have in place a program of bridge management, safety monitoring, enforcement, and cost recovery, overseen by the federal government. The fundamental problem involved in evaluating proposals for changes in truck dimensions is that their effects can often only be estimated or modeled. The data available for estimating safety consequences in particular are inadequate and probably always will be. Thus, the committee that conducted this study concluded that the resulting analyses usually involve a high degree of uncertainty. What is needed is some way to evaluate potential changes through limited and carefully controlled trials, much as proposed new drugs are tested before being allowed in widespread use. The committee recommended that a new independent entity be created to work with private industry in evaluating new concepts and recommending changes to regulatory agencies. Limited pilot tests would be required, which would need to be carefully designed to avoid undue risks and ensure proper evaluation. Special vehicles could be allowed to operate under carefully controlled circumstances, just as oversize and overweight vehicles are allowed to operate under special permits in many states. Changes in federal laws and regulations would be required to allow states to issue such permits on an expanded network of highways, under the condition that a rigorous program of monitoring and evaluation be instituted.Special Report 269 Summary
Download or read book Truck Operating Characteristics written by P. Fancher and published by Transportation Research Board. This book was released on 1997 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to engineers and administrators responsible for the design, construction, and maintenance of highways and bridges, as well as to engineering design consultants. It will also provide useful information on the influence of the design and operating characteristics of heavy trucks on highway design, maintenance, and operational performance.
Download or read book Passenger Car Equivalents on Urban Freeways written by E. L. Seguin and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a study to determine passenger car equivalents (PCEs) of trucks and other vehicles on urban freeways. Field data collection used the Traffic Evaluator System (TES). Samples of weaving, merge, diverge, and basic freeway sections were studied in Houston, Dallas and Atlanta. Detailed vehicle classification, headway, speed, and spacing were developed for over 287,000 vehicles.
Download or read book Truck Adjustment Factors for Rural Highways written by Wiley David Cunagin and published by . This book was released on 1982 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway capacity manual 2010 written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The HCM 2010 significantly enhances how engineers and planners assess the traffic and environmental effects of highway projects by: Providing an integrated multimodal approach to the analysis and evaluation of urban streets from the points of view of automobile drivers, transit passengers, bicyclists, and pedestrians; Addressing the proper application of microsimulation analysis and the evaluation of the results; Examining active traffic management in relation to demand and capacity; and Exploring specific tools and generalized service volume tables to assist planners in quickly sizing future facilities. The four-volume format provides information at several levels of detail, to help users more easily apply and understand the concepts, methodologies, and potential applications.
Download or read book Highway Capacity Manual written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The "Highway Capacity Manual" (HCM) is a collection of state-of-the-art techniques for estimating capacity and determining level of service for many transportation facilities and modes. This 1997 update of the HCM has been published to make the most current procedures available to the user community in a timely fashion. The current update includes extensive revisions to Chapters 3, 9, 10, and 11. Chapters 1, 4, 5, 6, and 7 have been modified to make them consistent with other revised chapters.
Download or read book 2020 Beaches written by and published by . This book was released on 2019-03 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book UAT Defined written by Rob Cimperman and published by Pearson Education. This book was released on 2006-11-28 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the eBook version of the printed book. This digtial Short Cut provides a concise and supremely useful guide to the emerging trend of User Acceptance Testing (UAT). The ultimate goal of UAT is to validate that a system of products is of sufficient quality to be accepted by the users and, ultimately, the sponsors. This Short Cut is unique in that it views UAT through the concept that the user should be represented in every step of the software delivery lifecycle--including requirements, designs, testing, and maintenance--so that the user community is prepared, and even eager, to accept the software once it is completed. Rob Cimperman offers an informal explanation of testing, software development, and project management to equip business testers with both theory and practical examples, without the overwhelming details often associated with books written for "professional" testers. Rather than simply explaining what to do, this resource is the only one that explains why and how to do it by addressing this market segment in simple, actionable language. Throughout the author’s considerable experience coordinating UAT and guiding business testers, he has learned precisely what testers do and do not intuitively understand about the software development process. UAT Defined informs the reader about the unfamiliar political landscape they will encounter. Giving the UAT team the tools they need to comprehend the process on their own saves the IT staff from having to explain test management from the beginning. The result is a practice that increases productivity and eliminates the costs associated with unnecessary mistakes, tedious rework, and avoidable delays. Chapter 1 Introduction Chapter 2 Defining UAT–What It Is...and What It Is Not Chapter 3 Test Planning–Setting the Stage for UAT Success Chapter 4 Building the Team–Transforming Users into Testers Chapter 5 Executing UAT–Tracking and Reporting Chapter 6 Mitigating Risk–Your Primary Responsibility
Download or read book Red Hat Fedora Core 6 Unleashed written by Andrew Hudson and published by Sams. This book was released on 2007 with total page 1091 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing with the tradition of offering the most comprehensive coverage of Red Hat Linux on the market, Fedora Core 6 Unleashed includes new and additional material based on the latest release of Red Hat's Fedora Core Linux distribution. Incorporating an advanced approach to presenting information about Fedora, the book aims to provide the best and latest information that intermediate to advanced Linux users need to know about installation, configuration, system administration, server operations, and security. Fedora Core 6 Unleashed thoroughly covers all of Fedora's software packages, including up-to-date material on new applications, Web development, peripherals, and programming languages. It also includes updated discussion of the architecture of the Linux kernel, USB, KDE, GNOME, Broadband access issues, routing, gateways, firewalls, disk tuning, GCC, Perl, Python, printing services (CUPS), wireless support, international support (Unicode 5.0 support), Java programs support (Eclipse), and security.
Download or read book Mastering Microsoft Exchange Server 2003 written by Barry Gerber and published by John Wiley and Sons. This book was released on 2006-02-20 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: All the Documentation You Need for Successfully Deploying Exchange Server 2003 Author Barry Gerber shares his extensive real-world experience in easy-to-understand language in this comprehensive guide to Microsoft's messaging and collaboration server. Mastering Exchange Server 2003 systematically and sequentially walks you through all the essential concepts of planning and design, installation, deployment, administration and management, maintenance, and troubleshooting. With detailed background information, clear step-by-step, hands-on instructions, and realistic examples, Gerber teaches you how to devise and implement a system that is just right for your environment. He then leads you to the next level with advanced coverage on reliability and availability, disaster recovery, security solutions, wireless access, and building custom e-mail forms for Outlook. Coverage Includes: Designing a new Exchange 2003 system Upgrading to Windows Server 2003 and Exchange Server 2003 Installing and configuring Exchange Server 2003, Windows Server 2003 as a domain controller, and Outlook 2003 from a customized server image Organizing Exchange users, distribution groups, and contacts Managing the Exchange Server hierarchy and core components Managing Exchange 2003 Internet services and services for Internet clients Installing and administrating additional Exchange Servers Performing advanced administration and management Ensuring Exchange Server reliability and availability Building Exchange Server system security Configuring wireless access to Exchange Server 2003 Creating and managing Outlook forms designer applications Exploring third-party applications for Exchange/Outlook clients and Exchange Server
