TY - BOOK TI - Becoming a Tech-Savvy DOT of Tomorrow DO - 10.17226/27293 PY - 2023 UR - https://nap.nationalacademies.org/catalog/27293/becoming-a-tech-savvy-dot-of-tomorrow PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Over the last several years, the transportation industry has been presented with multiple technologies and trends that have "disrupted" business as usual at state departments of transportation (DOTs) and other transportation agencies. These technologies include everything from new transportation modes (such as scooters) to new data sources, communication technologies, and trends (such as the growth in e-commerce); they present challenges as well as opportunities for transportation agencies in both performance and customer service. NCHRP Research Report 1075: Becoming a Tech-Savvy DOT of Tomorrow, from TRB's National Cooperative Highway Research Program, provides a playbook for agencies to follow for defining and strategically addressing the impacts of disruptive technologies on transportation outcomes and on the performance of business units within DOTs. Supplemental to the report are NCHRP Web-Only Document 371: Impact of New Disruptive Technologies on the Performance of DOTs and a Disruptive Tech Handout. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Paul Ryus A2 - Anusha Musunuru A2 - Kelly Laustsen A2 - James Bonneson A2 - Sirisha Kothuri A2 - Christopher Monsere A2 - Nathan McNeil A2 - Krista Nordback A2 - Seth LaJeunesse A2 - Wesley Kumfer A2 - Libby Thomas A2 - S. Ilgin Guler TI - Enhancing Pedestrian Volume Estimation and Developing HCM Pedestrian Methodologies for Safe and Sustainable Communities DO - 10.17226/26508 PY - 2022 UR - https://nap.nationalacademies.org/catalog/26508/enhancing-pedestrian-volume-estimation-and-developing-hcm-pedestrian-methodologies-for-safe-and-sustainable-communities PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Despite widespread use of walking as a transportation mode, walking has received far less attention than the motor vehicle mode in terms of national guidance and methods to support planning, designing, and operating safe, functional, and comfortable facilities.The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 312: Enhancing Pedestrian Volume Estimation and Developing HCM Pedestrian Methodologies for Safe and Sustainable Communities is a supplement to NCHRP Research Report 992: Guide to Pedestrian Analysis. It provides a practitioner-friendly introduction to pedestrian analysis.Supplemental to the document are Proposed Highway Capacity Manual Chapters. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Ricondo Craig Leiner A2 - RSG Thomas Adler TI - Transportation Network Companies (TNCs): Impacts to Airport Revenues and Operations—Reference Guide DO - 10.17226/25759 PY - 2020 UR - https://nap.nationalacademies.org/catalog/25759/transportation-network-companies-tncs-impacts-to-airport-revenues-and-operations-reference-guide PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Transportation network companies (TNCs) have become an increasingly popular form of transportation since initially permitted at some airports in 2014. While many airports receive significant revenue from TNCs, others have recorded declines in parking revenue and rental car transactions that are perceived to be a direct result of TNC operations.The TRB Airport Cooperative Research Program's ACRP Research Report 215: Transportation Network Companies (TNCs): Impacts to Airport Revenues and Operations—Reference Guide identifies strategies and practical tools for adapting airport landside access programs to reflect the evolution of ground transportation modes such as TNCs and autonomous vehicles.A searchable statistical database of the airport survey and the Airport Mode Choice and Ground Simulator Template (an Excel-based simulation template), which shows how the mode-choice model is applied to estimate revenue impact, supplement the report.In July 2020, an errata for this publication was issued. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Susan Shaheen A2 - Adam Cohen A2 - Jacquelyn Broader A2 - Sarah Hoban A2 - Ashley Auer A2 - Gustave Cordahi A2 - Shawn Kimmel TI - Shared Automated Vehicle Toolkit: Policies and Planning Considerations for Implementation DO - 10.17226/26821 PY - 2022 UR - https://nap.nationalacademies.org/catalog/26821/shared-automated-vehicle-toolkit-policies-and-planning-considerations-for-implementation PB - The National Academies Press CY - Washington, DC LA - English AB - Technology is changing the way people move and is reshaping mobility and society. The integration of transportation modes, real-time information, and instant communication and dispatch—possible with the click of a mouse or the touch of a smartphone app—is redefining mobility. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1009: Shared Automated Vehicle Toolkit: Policies and Planning Considerations for Implementation provides resources that identify key stakeholders and partnerships, offers emerging lessons learned, and provides sample regulations that can be used to help plan for and integrate emerging modes. Supplemental to the report are Appendix A, a presentation, and NCHRP Web-Only Document 331: Mobility on Demand and Automated Driving Systems:A Framework for Public-Sector Assessment. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Katherine Turnbull TI - Research on Fatigue in Transit Operations DO - 10.17226/22705 PY - 2012 UR - https://nap.nationalacademies.org/catalog/22705/research-on-fatigue-in-transit-operations PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - TRB’s Conference Proceedings on the Web 7: Research on Fatigue in Transit Operations is the summary of what occurred at an October 2011 conference that explored highlighted experiences addressing fatigue in other transportation modes, health effects of fatigue, safety impacts of fatigue, and fatigue issues and initiatives in transit. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Alexander Kolpakov A2 - Austin Marie Sipiora A2 - Jana E. Huss TI - Clean Vehicles, Fuels, and Practices for Airport Private Ground Transportation Providers DO - 10.17226/25193 PY - 2018 UR - https://nap.nationalacademies.org/catalog/25193/clean-vehicles-fuels-and-practices-for-airport-private-ground-transportation-providers PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - TRB's Airport Cooperative Research Program (ACRP) Synthesis 89: Clean Vehicles, Fuels, and Practices for Airport Private Ground Transportation Providers documents effective approaches and reviews best practices employed by airports to encourage different types of private ground transportation providers to run more environmentally friendly operations. The report summarizes the experiences of public-use airports with developing and implementing clean vehicle policies involving private ground transportation operators serving the airports.Download the report appendices online:Appendix A: Survey Questionnaires Appendix B: List of Survey RespondentsAppendix C: Survey Response SummariesAppendix D: Airport ResourcesAppendix E: Airports' Ground Transportation Mode SplitAppendix F: Fleet and Ownership Model of Ground Transportation (GT) ProvidersAppendix G: Alternative Fuel Vehicles' Emission Comparison ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Alex Karner A2 - Kaylyn Levine A2 - Louis Alcorn A2 - Minyu Situ A2 - Dana Rowangould A2 - Kyeongsu Kim A2 - Ayberk Kocatepe TI - Accessibility Measures in Practice: A Guide for Transportation Agencies DO - 10.17226/26793 PY - 2022 UR - https://nap.nationalacademies.org/catalog/26793/accessibility-measures-in-practice-a-guide-for-transportation-agencies PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Measures of accessibility provide important information about the performance of the transportation system across all modes in meeting human needs. The TRB National Cooperative Highway Research Program's NCHRP Research Report 1000: Accessibility Measures in Practice: A Guide for Transportation Agencies describes measures of accessibility—defined as the ease with which travelers can reach valued destinations—and how these measures can be implemented by transportation agencies. An associated conduct of research report, NCHRP Web-Only Document 330: Accessibility Measures in Practice, is available. Also supplemental to the report are a digital version of Appendix F, which contains worksheets to facilitate the step-by-step process described in Chapter 3, and Appendix G, which guides users of the worksheets. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Stephanie Ward A2 - Courtney Beard A2 - Sondra Retzlaff A2 - Maria Muia A2 - Christopher Willenborg A2 - Bryan Johnson A2 - Kim Kenville TI - Performance Measures for State Aviation Agencies DO - 10.17226/25975 PY - 2020 UR - https://nap.nationalacademies.org/catalog/25975/performance-measures-for-state-aviation-agencies PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Across the country, state transportation agencies of various modes have been required to incorporate performance measures (PMs) into their core business functions.With this trend developing nationwide, the TRB Airport Cooperative Research Program's ACRP Research Report 223: Performance Measures for State Aviation Agencies develops PMs for the National Association of State Aviation Officials (NASAO) membership and their respective state aviation agencies. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - Transportation Research Board 2021 Annual Report DO - 10.17226/26457 PY - 2022 UR - https://nap.nationalacademies.org/catalog/26457/transportation-research-board-2021-annual-report PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - The 2021 Annual Report summarizes TRB’s accomplishments in each of its major program areas and how TRB has served the nation and the global transportation professional community throughout the year. TRB provides leadership in transportation improvements and innovation through trusted, timely, impartial, and evidence-based information exchange, research, and advice regarding all modes of transportation.TRB is a program division of the National Academies of Sciences, Engineering, and Medicine (NASEM). The National Academies provide independent, objective analysis and advice to the nation; conduct activities to solve complex problems; and inform policy decisions on matters related to science, engineering, and medicine. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - State and Local Impacts of Automated Freight Transportation Systems DO - 10.17226/27076 PY - 2023 UR - https://nap.nationalacademies.org/catalog/27076/state-and-local-impacts-of-automated-freight-transportation-systems PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Policy-makers and planners must balance the benefits of operating freight automated vehicles (FAVs) with the additional burden they could place on state agencies and local jurisdictions.NCHRP Research Report 1028: State and Local Impacts of Automated Freight Transportation Systems, from TRB's National Cooperative Highway Research Program, details the impact of FAVs on state and local agencies and authorities.While the benefits of FAV operation are recognized, it is unclear how state and local agencies can integrate FAVs safely and effectively into public infrastructure. The report focuses on the modes of transportation that will be affected by FAVs, including trucks, drones, ships, and railways, as well as the possible interaction with terminal operations and other shipping and receiving systems.Supplemental to the report is Appendix E. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Fujie Zhou A2 - Sheng Hu A2 - Dave Newcomb TI - Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures DO - 10.17226/27421 PY - 2023 UR - https://nap.nationalacademies.org/catalog/27421/ruggedness-of-laboratory-tests-to-assess-cracking-resistance-of-asphalt-mixtures PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Cracking and durability issues of asphalt pavements have been primary concerns of departments of transportation the last two decades. Several modes of asphalt pavement cracking exist—fatigue, top-down, reflective, and thermal—and all are influenced by thermal loading, traffic loading, or a combination of both. NCHRP Web-Only Document 389: Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures, from TRB's National Cooperative Highway Research Program, documents existing field validation efforts for these four modes of cracking. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - The Role of Transit, Shared Modes, and Public Policy in the New Mobility Landscape DO - 10.17226/26053 PY - 2021 UR - https://nap.nationalacademies.org/catalog/26053/the-role-of-transit-shared-modes-and-public-policy-in-the-new-mobility-landscape PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - If combined with public transit and increased in scale, shared modes of transportation, such as ride-hailing, scooter sharing and bike sharing, can enhance mobility, equity, and sustainability in metropolitan areas. Cities, transit agencies, and shared mobility providers should collaborate in goal-setting, experimentation, testing, and implementation. These are among the findings in TRB Special Report 337: The Role of Transit, Shared Modes, and Public Policy in the New Mobility Landscape, from TRB of the National Academies of Sciences, Engineering, and Medicine. The report's authors recommend deliberate and strategic measures in order to realize the full and potentially transformative benefits of shared services. These measures include providing travelers with real- or near real-time information on combinations of available price and service offerings, smartphone applications that simplify the process of arranging and paying for the use of multiple transportation modes for a single trip, and more public sector coordination of services across modes and jurisdictions. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - Feasibility of a Consolidated Security Credential for Persons Who Transport Hazardous Materials DO - 10.17226/14565 PY - 2011 UR - https://nap.nationalacademies.org/catalog/14565/feasibility-of-a-consolidated-security-credential-for-persons-who-transport-hazardous-materials PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - TRB’s Hazardous Materials Cooperative Research Program (HMCRP) Report 6: Feasibility of a Consolidated Security Credential for Persons Who Transport Hazardous Materials discusses the feasibility of consolidating several existing security credentials, which are necessary under current regulations and policies, into one credential for all transportation modes.The report evaluates the credentialing system to identify duplicative elements and redundant costs and describes the acquisition process, the application elements, and the physical characteristics for each identified credential. In addition, the report identifies the elements of the vetting processes for each credential. The report includes an examination of four options for consolidation, which provides insight into the basic elements of a universally recognized security credential for HazMat transportation workers.HMCRP Report 6 also identifies key challenges for consolidation of security credentials, such as impetus and authority, organizational climate, financing, risk, and technological trending.An alternative method of consolidating background checks is identified as a possible intermediate solution for removing duplicative processes and redundant costs.A PowerPoint presentation, which summarizes the report process and conclusions, is available for download. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - Admissibility and Public Availability of Transit Safety Planning Records DO - 10.17226/25144 PY - 2018 UR - https://nap.nationalacademies.org/catalog/25144/admissibility-and-public-availability-of-transit-safety-planning-records PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - In 2012, Congress gave the U.S. Federal Transit Administration (FTA) the authority to establish a new comprehensive framework to oversee the safety of the country’s public transit systems. As part of that framework, state and local transit agencies are required to engage in safety planning. In the Fixing America’s Surface Transportation Act of 2015, Congress asked the National Academies of Sciences, Engineering, and Medicine to evaluate and provide recommendations on whether it is in the public interest for transit agencies to be allowed to withhold from civil litigation all records developed in compliance with this new federal safety planning requirement.TRB Special Report 326: Admissibility and Public Availability of Transit Safety Planning Records considers the arguments favoring and opposing evidentiary protections for safety planning records and the rationale for Congressional decisions to grant such protections in other transportation modes. The report examines factors that Congress must consider when deciding where the public interest balance lies. They include a desire for transit agencies to engage in high-quality safety planning without fear of the planning records being used against them in court and the preservation of a tort system that deters unsafe conditions and allows injured parties to be justly compensated. Recommendations to Congress and FTA are offered with these and other important factors in mind. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - Safely Transporting Hazardous Liquids and Gases in a Changing U.S. Energy Landscape DO - 10.17226/24923 PY - 2018 UR - https://nap.nationalacademies.org/catalog/24923/safely-transporting-hazardous-liquids-and-gases-in-a-changing-us-energy-landscape PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - TRB's Special Report 325: Safely Transporting Hazardous Liquids and Gases in a Changing U.S. Energy Landscape reviews how the pipeline, rail, and barge industries have fared in safely transporting the increased volumes of domestically produced energy liquids and gases. The report, sponsored by TRB, reviews the safety record of the three transportation modes in moving these hazardous shipments and discusses key aspects of each mode’s safety assurance system.The report urges the U.S. Department of Transportation’s Pipeline and Hazardous Materials Safety Administration to further the development of increasingly robust safety assurance systems that will ensure more timely and effective responses to future safety challenges. The recommendations include advice on traffic and safety data reporting, industry and local community consultation, and the creation of risk metrics. The Federal Railroad Administration is urged to enable and incentivize more frequent and comprehensive inspections of rail routes that are used regularly by trains transporting large volumes of flammable liquids.Accompanying the report is a two-page document highlighting the report's findings and recommendations. This report is currently in prepublication format and available online only. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - Transportation Research Board 2022 Annual Report DO - 10.17226/26838 PY - 2022 UR - https://nap.nationalacademies.org/catalog/26838/transportation-research-board-2022-annual-report PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - The 2022 Annual Report summarizes TRB’s accomplishments in each of its major program areas and how the non-profit organization has served the nation and the global transportation professional community throughout the year. TRB provides leadership in transportation improvements and innovation through trusted, timely, impartial, and evidence-based information exchange, research, and advice regarding all modes of transportation. TRB is a program division of the National Academies of Sciences, Engineering, and Medicine (NASEM). The National Academies provide independent, objective analysis and advice to the nation; conduct activities to solve complex problems; and inform policy decisions on matters related to science, engineering, and medicine. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Rick Donnelly and Rolf Moeckel TI - Statewide and Megaregional Travel Forecasting Models: Freight and Passenger DO - 10.17226/24927 PY - 2017 UR - https://nap.nationalacademies.org/catalog/24927/statewide-and-megaregional-travel-forecasting-models-freight-and-passenger PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 514: Statewide and Megaregional Travel Forecasting Models: Freight and Passenger documents current practices and emerging trends with travel forecasting models. The report explores the motivation for and capabilities of statewide and megaregion models, options for extending them and challenges states face doing so, data requirements, how they are used and integrated with other models, institutional constraints, and emerging trends and methods. Several related issues were investigated as well, including performance monitoring, alternative forecasting approaches, and how states are addressing hot topics such as pricing and congestion, multi-state corridors, and new transportation modes. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - Preparing for LNG by Rail Tank Car: A Review of a U.S. DOT Safety Research, Testing, and Analysis Initiative DO - 10.17226/26221 PY - 2021 UR - https://nap.nationalacademies.org/catalog/26221/preparing-for-lng-by-rail-tank-car-a-review-of-a-us-dot-safety-research-testing-and-analysis-initiative PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - Liquefied natural gas (LNG) has not been transported to any significant degree by freight railroads in the United States. When the Further Consolidated Appropriations Act of 2020 was enacted, it directed the Pipeline and Hazardous Materials Safety Administration (PHMSA) to enter into an agreement with the National Academies of Sciences, Engineering, and Medicine (NASEM) to convene a committee of independent experts to study the safe transportation of LNG by rail tank car.TRB Special Report 339: Preparing for LNG by Rail Tank Car: A Review of a U.S. DOT Safety Research, Testing, and Analysis Initiative, from TRB and NASEM, finds that PHMSA’s task force presented a comprehensive plan of work that built on longstanding safety programs, as well as surfacing opportunities for future research. The findings in the report will serve as a good base for the second phase of TRB’s phased continued study of the issue. The next phase will be informed by this technical report; will consider experience transporting LNG in other modes, including marine tankers and cargo tank trucks; and will examine the applicability of existing emergency response plans, protocols, and guides for responding to any possible hazardous materials incidents of transporting LNG by rail. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine A2 - Mark Bradley A2 - David Koffman TI - Improving ADA Paratransit Demand Estimation: Regional Modeling DO - 10.17226/22720 PY - 2012 UR - https://nap.nationalacademies.org/catalog/22720/improving-ada-paratransit-demand-estimation-regional-modeling PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - TRB’s Transit Cooperative Research Program (TCRP) Report 158: Improving ADA Paratransit Demand Estimation: Regional Modeling presents a sketch planning model and regional models designed to help metropolitan planning organizations and transit operators better estimate the probable future demand for Americans with Disability Act (ADA) complementary paratransit service, as well as predict travel by ADA paratransit-eligible individuals on all public transportation modes.Both models permit more detailed forecasts and deeper understanding of the travel behavior of ADA paratransit-eligible people. All model parameters and coefficients are contained in the report and a fully implemented version is available on a CD-ROM that is included with the print version of the report.The CD-ROM is also available for download from TRB’s website as an ISO image. Links to the ISO image and instructions for burning a CD-ROM from an ISO image are provided below.Help on Burning an .ISO CD-ROM ImageDownload the .ISO CD-ROM Image(Warning: This is a large file and may take some time to download using a high-speed connection.)CD-ROM Disclaimer - This software is offered as is, without warranty or promise of support of any kind either expressed or implied. Under no circumstance will the National Academy of Sciences or the Transportation Research Board (collectively "TRB") be liable for any loss or damage caused by the installation or operation of this product. TRB makes no representation or warranty of any kind, expressed or implied, in fact or in law, including without limitation, the warranty of merchantability or the warranty of fitness for a particular purpose, and shall not in any case be liable for any consequential or special damages. ER - TY - BOOK AU - Transportation Research Board AU - National Academies of Sciences, Engineering, and Medicine TI - Measuring Transportation Network Performance DO - 10.17226/14425 PY - 2010 UR - https://nap.nationalacademies.org/catalog/14425/measuring-transportation-network-performance PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure AB - TRB’s National Cooperative Highway Research Program (NCHRP) Report 664: Measuring Transportation Network Performance explores ways to monitor transportation network performance by developing new or integrating existing performance measures from different transportation modes and multiple jurisdictions. ER -