Information Requirements for Transportation Economic Analysis


Book Description

Conference participants sought to identify gaps in the data and analytic tools needed to support economic analysis as related to transportation investment and to develop research proposals designed to fill those gaps. The opening day of the conference featured presentations by economists, transportation analysts, and policy makers on the theory and practice of economic analysis and its usefulness to decision makers. The second and third days of the conference revolved around participatory workshops. Six separate working groups deliberated over three questions: (1) What is the appropriate level of investment in transportation to encourage economic health? (2) How should projects be prioritized within a multimodal transportation program? (3) How much revenue is likely to flow from user charges, tolls, and other sources? At the conclusion of its deliberations, each working group developed a list of research proposals, which it then presented to the conference as a whole.




Recycling and Reclamation of Asphalt Pavements Using In-Place Methods


Book Description

TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 421: Recycling and Reclamation of Asphalt Pavements Using In-Place Methods discusses the use of hot in-place recycling, cold in-place recycling, and full-depth reclamation of asphalt pavements.




Thin and Ultra-thin Whitetopping


Book Description

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 338: Thin and Ultra-Thin Whitetopping summarizes available information to document how state departments of transportation and others are currently using thin and ultra-thin whitetopping overlays among various pavement rehabilitation alternatives. The report covers all stages of the proper application of whitetopping overlays, including project selection, design, materials selection, construction, maintenance, and eventual rehabilitation or replacement.




Interaction Between Roadways and Wildlife Ecology


Book Description

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 305: Interaction Between Roadways and Wildlife Ecology summarizes existing information related to roadway planning, design, construction, operation, and maintenance practices being used successfully and unsuccessfully, nationally and internationally, to accommodate wildlife ecology given the challenging background of rapid growth and diminishing natural resources.




Testing and Characterization of Sustainable Innovative Bituminous Materials and Systems


Book Description

This book presents the detailed results of five task groups of the RILEM technical committee TC 237-SIB on Testing and Characterization of Sustainable Innovative Bituminous Materials and Systems. It concentrates on specific new topics in asphalt binder and mixture testing, dealing with new developments in asphalt testing, in particular also in view of new innovative bituminous materials, such as hot and cold recycled mixtures, grid reinforced pavements and recycled Reclaimed Asphalt Pavements (RAP), where test methods developed for traditional asphalt concrete are not a priori applicable. The main objective is providing a basis for pre-standardization by comparing different test methods and showing ways for fundamental improvements. Thus, the book also points the way for a further advanced chemo-physical understanding of materials and their role in pavement systems relying on fundamental material properties and suitable models for describing and predicting the intrinsic mechanisms that determine the material behavior.




Synthesis of Highway Practice


Book Description




Introduction to Unmanned Aircraft Systems, Second Edition


Book Description

The proliferation of technological capability, miniaturization, and demand for aerial intelligence is pushing unmanned aerial systems (UAS) into the realm of a multi-billion dollar industry. This book surveys the UAS landscape from history to future applications. It discusses commercial applications, integration into the national airspace system (NAS), System function, operational procedures, safety concerns, and a host of other relevant topics. The book is dynamic and well-illustrated with separate sections for terminology and web- based resources for further information.




An Introduction to Cold Recycling of Asphalt Concrete Pavement


Book Description

Introductory technical guidance for civil engineers and construction managers interested in cold recycling of asphalt concrete pavement for streets and highways. Here is what is discussed: 1. INTRODUCTION 2. BACKGROUND 3. INITIAL PROJECT SELECTION CRITERIA 4. TRAFFIC 5. STRUCTURAL ASSESSMENT 6. OVERLAY THICKNESS DESIGN 7. INITIAL STRUCTURAL SUPPORT 8. PROJECT LENGTH 9. CURING 10. UTILITIES 11. SURFACE TREATMENTS 12. PAVING FABRICS, GEOSYNTHETICS AND CRACK SEAL 13. PATCHES 14. FINAL PROJECT SELECTION 15. ECONOMIC ASSESSMENT 16. SUMMARY 17. SIGNIFICANT IN-PLACE RECYCLING RESOURCES.




Accelerated Pavement Testing to Transport Infrastructure Innovation


Book Description

This volume gathers the latest advances, innovations, and applications in the field of accelerated pavement testing (APT), presented at the 6th International Conference on Accelerated Pavement Testing, in Nantes, France, in April 2022. Discussing APT, which involves rapid testing of full-scale pavement constructions for structural deterioration, the book covers topics such as APT facilities, APT of asphalt concrete and sustainable/innovative materials, APT for airfield pavements, testing of maintenance and rehabilitation solutions, testing of smart and multi-functional pavements, data analysis and modeling, monitoring and non-destructive testing, and efficient means of calibrating/developing pavement design methods. Featuring peer-reviewed contributions by leading international researchers and engineers, the book is a timely and highly relevant resource for materials scientists and engineers interested in determining the performance of pavement structures during their service life (10+ years) in a few weeks or months.




Multimodal Aspects of Statewide Transportation Planning


Book Description

This synthesis report will be of interest to department of transportation ( DOT) administrators, planning supervisors, managers, and staffs, as well as to planning consultants that work with them. It provides information for practitioners interested in the results of attempts to apply multimodal considerations at the statewide level and identifies key research findings. It covers post-ISTEA (Intermodal Surface Transportation Efficiency Act of 1991) processes and projects and both passenger and freight activities. The report examines the application of three multimodal aspects: alternatives, modal mix, and integration into three statewide planning functions, which include state planning, corridor studies, and financing, budgeting, and programming. The emphasis is on implementation. This report of the Transportation Research Board documents processes and research currently under development, using three approaches: a literature review, results of a survey of state DOTs, and five case studies. It cites the following states with exemplary practices in multimodal/intermodal transportation based on a 1998 report by the policy research project at the University of Texas on Multimodal/ Intermodal Transportation: Florida, Minnesota, Oregon, Pennsylvania, Virginia, Washington, and Wisconsin.