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Road Infrastructure and Economic Development
The average stock of paved roads per million inhabitants in high-income economies is 59 times that in low-income economies. And those roads are in better condition than the ones in low income economies.
Sensor Networks
This book constitutes the refereed proceedings of the 6th International Conference, SENSORNETS 2017, Porto, Portugal, held in February 2017, and the 7th International Conference, SENSORNETS 2018, Funchal, Madeira, Portugal, held in January 2018. The 18 full papers presented were carefully reviewed and selected from 67 submissions. The papers cover the following topics: sensor networks, including hardware of sensor networks, wireless communication protocols, sensor networks software and architectures, wireless information networks, data manipulation, signal processing, localization and object tracking through sensor networks, obstacles, applications and uses.
The Rise of the City
Cities and city regions are growing throughout the world and this trend is forecast to continue well into the 21st century. The authors of The Rise of the City see the next 100 years as being the ÒUrban CenturyÓ. In this book they examine urban growth
Type II Unbound Cohesive Subgrade Soil Synthetic Reference Sample Program
Strategic Highway Research Program (SHRP) Protocol 46, "Resilient Modulus of Unbound Granular Base/Subbase Materials and Subgrade Soils", was the specified procedure for laboratories performing resilient modulus test on research samples of unbound cohesive subgrade soil obtained from Long-Term Pavement Performance (LTPP) field sites. P46 requires a test system that includes a triaxial pressure cell component, a closed loop electro-hydraulic repeated load component, and certain load and specimen response control, measurement, and recording components. Two elements of P46 testing were particularly important: verification that the system was calibrated and yielding reasonable results and a practical means of performing quality checks on a daily or more frequent basis. A set of three synthetic reference samples was acquired, instructions for testing were prepared, and the set was circulated to 14 LTPP laboratories for testing. Worksheets, supporting data, analyses, final comments, and conclusions are presented.
Asphalt Concrete Synthetic Reference Sample Program and the LTPP Asphalt Concrete Core Proficiency Sample Program
All laboratories conducting tests for the Long-Term Pavement Performance (LTPP) program were required to be accredited by the American Association of State Highway and Transportation Officials (AASHTO) Accreditation Program (AAP). AAP includes site inspections of equipment and procedures, and participation in applicable proficiency sample testing. A few critical LTPP tests were not addressed fully by the AAP, and the LTPP decided to conduct supplemental testing. The asphalt concrete synthetic reference sample program and the asphalt concrete core proficiency sample program were among the supplemental programs approved for implementation. In the first of these two programs, a set of four specimens was circulated to all participating laboratories for testing in accordance with specified parameters. In the second program, two sets of cores (five per set) were shipped to the laboratories. Twenty-four laboratories participated in either one or both programs. Worksheets, supporting data, analyses, final comments, and conclusions are presented. A complete set of proficiency sample statements are provided.
Modern Brazil
Modern Brazil, a collection of original essays, views the largest country in South America through the multiple lenses of political science, economics, telecommunications, and religion. The editors, Michael L. Conniff and Frank D. McCann, have provided a frame for this analysis of a complex society by centering on the elites, those who run national affairs, and the masses, those poor and working-class people who have little direct influence on them. Discussing the political elites from regional, national, and military standpoints are, respectively, Joseph L. Love and Bert J. Barickman, Conniff, and McCann. The economic elites, notably businessmen and industrialists, are analyzed by Steven To...
