Download or read book Traffic Surveillance and Means of Communicating with Drivers written by Cornell Aeronautical Laboratory and published by . This book was released on 1964 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The operational characteristics of freeways were studied to determine a method of communicating traffic surveillance information to the drivers. The recommended spacing of detection devices to measure speed, volume and/or occupancy data was developed to collect the required information for determining impending traffic congestion. Design criteria for a ramp access advisory signal was established and tested. The operation of an airborne observer in traffic control was also investigated. A general description of air surveillance operations and its equipment and cost are included.
Download or read book Autonomous Driving written by Markus Maurer and published by Springer. This book was released on 2016-05-21 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book takes a look at fully automated, autonomous vehicles and discusses many open questions: How can autonomous vehicles be integrated into the current transportation system with diverse users and human drivers? Where do automated vehicles fall under current legal frameworks? What risks are associated with automation and how will society respond to these risks? How will the marketplace react to automated vehicles and what changes may be necessary for companies? Experts from Germany and the United States define key societal, engineering, and mobility issues related to the automation of vehicles. They discuss the decisions programmers of automated vehicles must make to enable vehicles to perceive their environment, interact with other road users, and choose actions that may have ethical consequences. The authors further identify expectations and concerns that will form the basis for individual and societal acceptance of autonomous driving. While the safety benefits of such vehicles are tremendous, the authors demonstrate that these benefits will only be achieved if vehicles have an appropriate safety concept at the heart of their design. Realizing the potential of automated vehicles to reorganize traffic and transform mobility of people and goods requires similar care in the design of vehicles and networks. By covering all of these topics, the book aims to provide a current, comprehensive, and scientifically sound treatment of the emerging field of “autonomous driving".
Download or read book Publication Index 1966 1968 written by and published by . This book was released on 1969 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Research News written by and published by . This book was released on 1963 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues for 1963- include section: Urban transportation research digest.
Download or read book Summary of Progress National Cooperative Highway Research Program written by National Cooperative Highway Research Program and published by . This book was released on 1986 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Pavement Thickness by Rapid and Nondestructive Methods written by S. D. Howkins and published by . This book was released on 1968 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The feasibility is investigated of various acoustic (sonic), nuclear, and electrical techniques for nondestructive measurement of Portland cement and bituminous concrete pavement thickness both during and after construction. Recommendations are made for equipment development and field testing of three specific methods that could potentially result in such measurements with the desired degree of speed and accuracy.
Download or read book Tentative Design Procedure for Riprap lined Channels written by Alvin George Anderson and published by . This book was released on 1970 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was the development of criteria and design procedures for the use of aggregate riprap linings, which consists of a layer of discrete fragments of rock of sufficient size to resist the erosive forces of the flow. The design of such riprap-lined drainage channels involves the interrelationship between the discharge, the longitudinal slope, the size and shape of the channel, and the size distribution of the riprap lining. This report describes these interrelationships and develops design criteria by which a riprap-lined drainage channel can be proportioned and the riprap lining can be specified for a given discharge and longitudinal slope. The relationships so developed have been reduced to design charts, the use of which permits rapid and simple establishment of channel shape and size as well as of the properties of the riprap lining.
Download or read book Motorists Needs and Services on Interstate Highways written by A. Kuprijanow and published by . This book was released on 1969 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report will be of primary interest to highway administrators and traffic planners who are concerned about the present and future service demands on the Interstate Highway System. This study compares the availability and the demand for (a) emergency services which are those normally supplied by police, tow vehicles and ambulances; (b) normal services which are routine services such as gasoline, food and lodging, and (c) supplemental services which include rest areas, signing for directions and services and a choice of service types, brands, prices, etc. Recommendations are presented which should remove some of the deficiencies found by the researchers.
Download or read book Effect of Highway Landscape Development on Nearby Property written by John H. Brinton and published by . This book was released on 1969 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data were collected and disturbances were measured to determine the effects of physical disturbances by limited access highways on nearby property values. 3 types of analyses were made on the collected data: major-variable analysis, economic analysis, and interview analysis. In the major-variable analysis, relationships and correlations were examined between sound levels and sound level reductions at specific measurement points, and other variables such as sound level perception, present tree diversity, and homeowners' attitudes of buying another house next to the highway. The economic analysis evaluated the effect of highway disturbances and landscape/landforms on property values. The interview analysis was used to evaluate specific complaints or disturbances.
Download or read book Urban Travel Patterns for Hospitals Universities Office Buildings and Capitols written by Louis E. Keefer and published by . This book was released on 1969 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Travel patterns were studied for hospitals, colleges and universities, office buildings, and state capitol complexes. The analyses include trip generation, trip distribution, and general trip characteristics such as trip purpose and mode of travel. Data were obtained from many origin-and-destination studies conducted during recent years for urban transportation planning processes. Trips to and from specific types of land use were studied. The trip generation characteristics are related to various quantifiable factors for each specific land use through the use of multiple regression analyses.
Download or read book Economics of Design Standards for Low volume Rural Roads written by Clarkson Hill Oglesby and published by . This book was released on 1969 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: he objective of this study is to examine prevailing rural design standards to determine their economic justification. This would evaluate in depth the cost of some of the most significant design practices (for example, roadway and shoulder width and surfacing type). Resulting user benefits, such as operating, accident and time savings would be weighed against the cost of individual features. In addition to the analysis of the user-benefit relationships, the economic and social consequences to local residents, businesses and communities should be studied and a suitable means of including them in the reckoning of warranted levels of improvement should be found.
Download or read book Highway Noise a Design Guide for Highway Engineers written by Bolt, Beranek, and Newman and published by . This book was released on 1971 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various methods of assessing noise, loudness, and noise annoyance are reviewed and explained; sources, types, and intensities of traffic noise are noted; typical means of abatement and attenuation are described; design criteria for various land uses ranging from low-density to industrial are suggested and compared with the results of previous BBN and British systems for predicting annoyance and complaint; and a design guide for predicting traffic noise, capable of being programmed for batch and on-line computer applications, is presented in form suitable for use as a working tool. A flow diagram describes the interrelationships of elements in the traffic noise prediction methodology, and each element is discussed in detail in the text. The text is presented of a tape recording that takes the listener through a series of traffic situations, with such variables as traffic distance, flow velocity, distance, outdoors and indoors, and presence or absence of absorbers and attenuators.
Download or read book Integrated Intelligent Computing Communication and Security written by A.N. Krishna and published by Springer. This book was released on 2018-09-14 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the emerging field of intelligent computing and developing smart systems. It includes chapters discussing the outcome of challenging research related to distributed computing, smart machines and their security related research, and also covers next-generation communication techniques and the networking technologies that have the potential to build the future communication infrastructure. Bringing together computing, communications and other aspects of intelligent and smart computing, it contributes to developing a roadmap for future research on intelligent systems.
Download or read book Summary of Progress written by National Cooperative Highway Research Program and published by . This book was released on 1979 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protective Coatings for Highway Structural Steel written by John D. Keane and published by . This book was released on 1969 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: A current state-of-the-art survey is presented with regard to painting of highway structural steel. A thorough literature review was conducted and an inspection and evaluation made of more than 4,000 paint exposure tests. Paint film thickness measurement studies were made. Specific recommendations are given for selecting typical paint systems on the basis of six environmental zones, which represent the range of severity of environment in which highway steel structures are located in the United States. Model specifications are suggested for surface preparation, application, material procurement, and paint system.
Download or read book Density and Moisture Content Measurements by Nuclear Methods written by Robin P. Gardner and published by . This book was released on 1967 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sources of error that have been identified on the gamma-ray soil density gauge are: (1) sensitivity to local density variations, especially at the soil surface, (2) sensitivity to soil composition, and (3) inaccurate calibration techniques. An attempt was made to solve these problems by developing for each gauge calibration models that enable stable and homogenous non-soil standards to be used for calibration. Calibration standards and calibration models for each gauge were found and tested. In the process of developing and testing the new nuclear gauge calibration model, the dual-gauge principal of compensating these gauges for variations in soil composition was discovered. The air-gap method of using this principal is explained and was optimized by using the calibration model developed in the current study.
Download or read book Highway Research in Progress written by and published by . This book was released on 1969 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:
