This research evaluated operational, safety, and perceived effects of superstreets, called restricted crossing U-turn intersections by FHWA, and developed a useful level of service (LOS) estimation program which could be used on North Carolina's urban and rural arterial roadway system. The operational analysis involved calibrating and validating VISSIM models of three existing signalized superstreets in North Carolina: two isolated intersections, and one five-intersection superstreet corridor. Results from the three models were compared to results from models of equivalent conventional intersections at various volume levels using travel time as the main measure of effectiveness.
'This book is a tremendous information resource, and Dr. Zimmerman is a true data "guru". Informed by her unique combination of interests, Transport, the Environment and Security represents a giant leap forward in understanding this previously understudied confluence of forces, encompassing topics as diverse as how transportation affects the environment and how security problems can affect transportation.' – Vicki Bier, University of Wisconsin-Madison, US 'Zimmerman's book is a much needed addition to our scientific understanding of the nexus between environment and security within a transportation context. Transportation networks (rail and road) are the quintessential American lifeline and disruptions through episodic natural hazards, terrorist activities, or longer term climate changes will have profound changes on society – presently and in the future. Zimmerman illustrates the synergies between environment, transport networks, security, social justice and urban places in a masterful and thoughtful synthesis that underscores the interdependencies within the transportation infrastructure, the nation's vulnerability to transport disruptions, and offers ideas for increasing the resilience of the transportation infrastructure. It will become a standard reference as we re-imagine transport in the 21st century under changing climate, security, environment, and living conditions.' – Susan L. Cutter, University of South Carolina, US 'Transportation planning and policy making have followed a particular model for more than fifty years. Rae Zimmerman begins with the premise that we are in a rut and that the old ways of thinking need to be replaced. An enormous amount of evidence is presented that together argues a strong case for the systematic integration of planning for transportation, the environment, and security. While the book does not get us to an integrated process, it points us to one and starts us down a creative path. A great introduction to the complexities of these relationships.' – Martin Wachs, RAND Corporation, US Effective means of transport are critical under both normal and extreme conditions, but modern transport systems are subject to many diverse demands. This path-breaking book uniquely draws together the typically conflicting arenas of transport, the environment and security, and provides collective solutions to their respective issues and challenges. From a primarily urban perspective, the author illustrates that the fields of transportation, environment (with an emphasis on climate change) and security (for both natural hazards and terrorism) and their interconnections remain robust areas for policy and planning. Synthesizing existing data, new analyses, and a rich set of case studies, the book uses transportation networks as a framework to explore transportation in conjunction with environment, security, and interdependencies with other infrastructure sectors. The US rail transit system, ecological corridors, cyber security, planning mechanisms and the effectiveness of technologies are among the topics explored in detail. Case studies of severe and potential impacts of natural hazards, accidents, and security breaches on transportation are presented. These cases support the analyses of the forces on transportation, land use and patterns of population change that connect, disconnect and reconnect people from their environment and security. The book will prove a fascinating and insightful read for academics, students, and practitioners across a wide range of fields including: transport, environmental economics, environmental management, urban planning, public policy, and terrorism and security.
A multi-disciplinary approach to transportation planning fundamentals The Transportation Planning Handbook is a comprehensive, practice-oriented reference that presents the fundamental concepts of transportation planning alongside proven techniques. This new fourth edition is more strongly focused on serving the needs of all users, the role of safety in the planning process, and transportation planning in the context of societal concerns, including the development of more sustainable transportation solutions. The content structure has been redesigned with a new format that promotes a more functionally driven multimodal approach to planning, design, and implementation, including guidance toward the latest tools and technology. The material has been updated to reflect the latest changes to major transportation resources such as the HCM, MUTCD, HSM, and more, including the most current ADA accessibility regulations. Transportation planning has historically followed the rational planning model of defining objectives, identifying problems, generating and evaluating alternatives, and developing plans. Planners are increasingly expected to adopt a more multi-disciplinary approach, especially in light of the rising importance of sustainability and environmental concerns. This book presents the fundamentals of transportation planning in a multidisciplinary context, giving readers a practical reference for day-to-day answers. Serve the needs of all users Incorporate safety into the planning process Examine the latest transportation planning software packages Get up to date on the latest standards, recommendations, and codes Developed by The Institute of Transportation Engineers, this book is the culmination of over seventy years of transportation planning solutions, fully updated to reflect the needs of a changing society. For a comprehensive guide with practical answers, The Transportation Planning Handbook is an essential reference.
