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Compilation of DOT and FAA Airport Legal Determinations and Opinion Letters as of December 31, 2022
2/1/2024 1:04:32 PM
U.S. airports that receive assistance from the federal government are required to comply with a number of obligations imposed by federal law. The TRB Airport Cooperative Research Program's ACRP Legal Research Digest 21: Compilation of DOT and FAA Airport Legal Determinations and Opinion Letters as of December 31, 2022 covers legal matters that include the reasonableness of contractual terms, leasing practices, airport rules and regulations, airport charges imposed on aeronautical users, including a...
Development of a Small Aircraft Runway Length Analysis Tool
9/16/2022 6:01:37 PM
An important operational characteristic of an airport is the length of its longest runway. The longest runway determines the types of aircraft that can use the airport and dictates the operational limitations at the airport. The TRB Airport Cooperative Research Program's ACRP Web-Only Document 54: Development of a Small Aircraft Runway Length Analysis Tool provides a user-friendly computer tool to help airport planners and designers estimate runway length requirements for a variety of aircraft and design...
TR News 336 November-December 2021
3/31/2022 8:00:33 PM
The November-December 2021 issue of TR News —with a cover feature on collaboration and innovation at the MnROAD Research Facility—is available in full online. Other feature articles in the issue include Airport Cooperative Research Program guidance on best design practices for service animal relief areas, worship spaces, lactation areas, and more; developing the transportation workforce; and infrastructure preservation and renewal. This is Issue 336. To subscribe to TR News, sign up through MyTRB.org. Su...
Methods for State DOTs to Reduce Greenhouse Gas Emissions from the Transportation Sector
3/14/2022 12:00:00 PM
Many technical and institutional issues related to estimating and reducing greenhouse gas emissions (GHGs) lie across a wide spectrum of the activities undertaken by state departments of transportation (DOTs). The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 308: Methods for State DOTs to Reduce Greenhouse Gas Emissions from the Transportation Sector documents the research effort for an NCHRP project that focused on developing a guide for state DOTs on reducing GHG emission...
Implementation of the AASHTO Guide for Enterprise Risk Management
3/8/2022 7:28:29 PM
The AASHTO Guide for Enterprise Risk Management , published in 2016, defines enterprise risk management as “the formal and systematic effort to control uncertainty and variability on an organization’s strategic objectives by managing risks at all levels of the organization.” The TRB National Cooperative Highway Research Program's NCHRP Research Report 986: Implementation of the AASHTO Guide for Enterprise Risk Management documents how several state departments of transportation are adopting risk man...
Recent Decline in Public Transportation Ridership: Hypotheses, Methodologies, and Detailed City-by-City Results
2/10/2022 8:00:20 PM
The TRB Transit Cooperative Research Program's TCRP Web-Only Document 74: Recent Decline in Public Transportation Ridership: Hypotheses, Methodologies, and Detailed City-by-City Results provides supplemental information to TCRP Research Report 231: Recent Decline in Public Transportation Ridership: Analysis, Causes, and Responses , which delves into exploring ridership losses already being experienced by transit systems prior to the COVID-19 pandemic.
TR News 335 September-October 2021: State of Emergency: What Transportation Learned From 9/11
1/28/2022 1:00:15 PM
The September-October 2021 issue of TR News —with a cover feature on what the transportation industry learned from 9/11—is available in full online. Other feature articles in the issue focus on how, since the terrorist attacks of September 11, 2001 (9/11), transportation has broadened its role to include response and operations—from traffic incident management as a multiagency function to aviation security. But in the 20 years since 9/11, natural disasters, technology changes, and pandemics have pr...
Transportation Research Board 2021 Annual Report
1/3/2022 8:00:37 PM
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...
Strengthening U.S. Coast Guard Oversight and Support of Recognized Organizations: The Case of the Alternate Compliance Program
12/23/2021 3:00:00 PM
Partly in response to a 2015 cargo ship sinking, the U.S. Coast Guard has put in place and proceeded to implement a well-conceived organizational and procedural framework for supporting and overseeing “recognized organizations,” particularly those in the Coast Guard’s Alternative Compliance Program. TRB Special Report 343: Strengthening U.S. Coast Guard Oversight and Support of Recognized Organizations: The Case of the Alternate Compliance Program recommends a series of steps the Coast Guard should take ...
Options for Improving the Safety of DUKW Type Amphibious Vessels
12/16/2021 3:00:00 PM
To ensure the safety of passengers and crew on DUKWs — amphibious vehicles also referred to as duck boats — the United States Coast Guard (USCG) should issue a range of new guidelines and requirements. TRB’s Special Report 342: Options for Improving the Safety of DUKW Type Amphibious Vessels recommends that the USCG use a consistent risk-assessment methodology and update its regulations and enforcement practices in a way that reflects the variable levels of risk to passengers and crew.
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