Integrating Clarus Data in Traffic Signal System Operation


Book Description

This report presents a prototype of a secure, dependable, real-time weather-responsive traffic signal system. The prototype executes two tasks: 1) accesses weather information that provides near real-time atmospheric and pavement surface condition observations and 2) adapts signal timing in response to inclement weather. The proposed system architecture employs two revolutionary software design approaches: 1) Design for Survivability and 2) software performance measurement at the task level. Furthermore, the software design incorporates self-diagnostic techniques for fault detection and recovery to maximize the survivability and the security of the system. Minimal hardware is required for full implementation of the system as it operates and achieves its potential using current traffic controller and cabinet standards and technologies. As a result, it is compatible with future applications within the FHWA's connected-vehicle framework. The weather-responsive traffic signal system presented in this report serves as a major milestone in the development of secure and dependable real-time traffic control system applications.




Public Roads


Book Description




Traffic Signal Control Enhancements Under Vehicle Infrastructure Integration Systems


Book Description

Most current traffic signal systems are operated using a very archaic traffic-detection simple binary logic (vehicle presence/non presence information). The logic was originally developed to provide input for old electro-mechanical controllers that were developed in the early 1920s. It is currently in urgent need to improve the performance of traffic control devices. With the development of automatic controls, sensors, and devices, it is now possible to design advanced intersection control systems that can fully utilize advanced technologies of detection and communication as well as the high quality data acquired by such technologies. One example of such systems is Vehicle Infrastructure Integration (VII). VII links vehicles, drivers, and surrounding infrastructure (which includes roadways, traffic controls, etc.) to improve the efficiency of traffic systems and promote transportation safety. It promises to "bridge the gap" between the infrastructure and individual drivers. The purpose of this research is to 1. Investigate the potential to utilize VII data to characterize system operation and estimate system-wide measure of performance, and 2. Develop advanced signal timing procedures that can capitalize on VII data and enhance the operations of traffic signal system operations. Three advanced traffic signal control systems are developed and tested in this research. The advantages of such systems were tested in terms of time savings, the environment, and system improvements.













ACSM Bulletin


Book Description




Internet of Things and Big Data Analytics for Smart Generation


Book Description

This book discusses emerging technologies in the field of the Internet of Things and big data, an area that will be scaled in next two decades. Written by a team of leading experts, it is the only book focusing on the broad areas of both the Internet of things and big data. The thirteen chapters present real-time experimental methods and theoretical explanations, as well as the implementation of these technologies through various applications. Offering a blend of theory and hands-on practices, the book enables graduate, postgraduate and research students who are involved in real-time project scaling techniques to understand projects and their execution. It is also useful for senior computer students, researchers and industry workers who are involved in experimenting with the Internet of Things and big data technologies, helping them to solve the real-time problem. Moreover, the chapters covering cutting-edge technologies help multidisciplinary researchers who are bridging the gap of two different outset real-time problems.




Monitoring and Improving Roadway Surface Conditions for Safe Driving Environment and Sustainable Infrastructure


Book Description

"Toward the goal of reducing collisions while maintaining the integrity and sustainability of roadways, separate projects in both France and California in recent years have been developed to achieve the following objectives: evaluating the effectiveness of."--Documentation page abstract.




Encyclopedia of Transportation


Book Description

Viewing transportation through the lens of current social, economic, and policy aspects, this four-volume reference work explores the topic of transportation across multiple disciplines within the social sciences and related areas, including geography, public policy, business, and economics. The book’s articles, all written by experts in the field, seek to answer such questions as: What has been the legacy, not just economically but politically and socially as well, of President Eisenhower’s modern interstate highway system in America? With that system and the infrastructure that supports it now in a state of decline and decay, what’s the best path for the future at a time of enormous fiscal constraints? Should California politicians plunge ahead with plans for a high-speed rail that every expert says—despite the allure—will go largely unused and will never pay back the massive investment while at this very moment potholes go unfilled all across the state? What path is best for emerging countries to keep pace with dramatic economic growth for their part? What are the social and financial costs of gridlock in our cities? Features: Approximately 675 signed articles authored by prominent scholars are arranged in A-to-Z fashion and conclude with Further Readings and cross references. A Chronology helps readers put individual events into historical context; a Reader’s Guide organizes entries by broad topical or thematic areas; a detailed index helps users quickly locate entries of most immediate interest; and a Resource Guide provides a list of journals, books, and associations and their websites. While articles were written to avoid jargon as much as possible, a Glossary provides quick definitions of technical terms. To ensure full, well-rounded coverage of the field, the General Editor with expertise in urban planning, public policy, and the environment worked alongside a Consulting Editor with a background in Civil Engineering. The index, Reader’s Guide, and cross references combine for thorough search-and-browse capabilities in the electronic edition. Available in both print and electronic formats, Encyclopedia of Transportation is an ideal reference for libraries and those who want to explore the issues that surround transportation in the United States and around the world.