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TRB Publications about Maintenance and Preservation

Proposed AASHTO Practice and Tests for Process Control and Product Acceptance of Asphalt-Treated Cold Recycled Pavements Proposed AASHTO Practice and Tests for Process Control and Product Acceptance of Asphalt-Treated Cold Recycled Pavements
NCHRP Research Report 960
January 22, 2021
Pavement recycling is a technology that can restore the service life of pavement structures and stretch available funding for pavement rehabilitation. In general, pavement recycling techniques remix the existing pavement material and reuse it in the final pavement in the form of a stabilized layer. Limitations to further widespread implementation of pavement recycling processes have been reported ...

TR News November-December 2020 issue table of contents now online TR News November-December 2020 issue table of contents now online
January 20, 2021
The November-December 2020 issue of TR News —with a cover feature on the development of a Recycled Material Web Map—is available in hard copy and digital copy for subscribers. For those who are not subscribers, the table of contents is available. Other feature articles in the issue include "Living with Transformational Technologies and Other Surprises," "Asphalt Recycling: History of Recycled Mate...

TR News September-October 2020: Embracing the Future TR News September-October 2020: Embracing the Future
January 07, 2021
The September–October 2020 issue of TRB's magazine is now available in full online. Themed “Embracing the Future,” the issue celebrates TRB’s centennial with articles forecasting the future of transportation. Authors present outlooks that are multimodal, creative, diverse, inclusive, and thought-provoking, offering a pause point for transportation researchers, policy makers, and practitioners as t...

COVID-19 Addendum to Critical Issues in Transportation COVID-19 Addendum to Critical Issues in Transportation
January 06, 2021
The year 2020’s raging coronavirus pandemic and reckoning with long-standing racial injustice led to widespread disruption and suffering, social unrest, and renewed calls for an accounting of our fragmented public health system and troubled history of racial inequity. The crises of 2020 transcend transportation yet also raise fundamental questions for it along with other sectors of our society and...

Transportation Research Board 2020 Annual Report Transportation Research Board 2020 Annual Report
January 06, 2021
The 2020 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 2020. 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...

Onboard High-Bandwidth Fiber-Optic Sensing System for Broken Rail Detection Onboard High-Bandwidth Fiber-Optic Sensing System for Broken Rail Detection
December 10, 2020
One critical need for monitoring and improving transportation rail safety is early-stage pre-catastrophic-failure detection of rail breakage, or emerging faults under trains. The TRB IDEA (Innovations Deserving Exploratory Analysis) Program's Rail Safety IDEA Final Report 36: Onboard High-Bandwidth Fiber-Optic Sensing System for Broken Rail Detection details the development of an innovative onboar...

Proposed AASHTO Guides for Bridge Preservation Actions Proposed AASHTO Guides for Bridge Preservation Actions
NCHRP Research Report 950
December 03, 2020
Many transportation departments have significant practical experience with bridge preservation and have developed conclusions regarding the effectiveness of bridge preservation actions based on those experiences. However, limited efforts have been made to identify, measure, evaluate, and document the short- and long-term performance of specific bridge preservation actions. The TRB National Coopera...

Maintenance Planning for Rail Asset Management—Current Practices Maintenance Planning for Rail Asset Management—Current Practices
TCRP Synthesis 151
December 02, 2020
The occurrence of rail defects, broken rails, and broken rail derailments is consistent with the rate of development found in other studies that look at larger populations of rail defects. Likewise, the larger and more heavily used transit systems develop increased levels of defects, which is again consistent with what is seen in the railroad industry at large. The TRB Transit Cooperative Research...

Third Rail Insulator Failures: Current State of the Practice Third Rail Insulator Failures: Current State of the Practice
TCRP Synthesis 150
November 30, 2020
Third rail systems provide traction power to electrified rail systems in many parts of the world, including the United States, and encounter problems such as failures that need to be investigated and remediated. The TRB Transit Cooperative Research Program's TCRP Synthesis 150: Third Rail Insulator Failures: Current State of the Practice  documents the present practices and lessons learned, c...

A Pandemic Playbook for Transportation Agencies A Pandemic Playbook for Transportation Agencies
NCHRP Research Report 963/TCRP Research Report 225
November 12, 2020
Understanding pandemics, their impacts to transportation, and potential effective response has become more important, not only for the response to COVID-19, but also if, as the World Health Organization warns, we are now “living in a time of viruses.” TRB's National Cooperative Highway Research Program and Transit Cooperative Research Program have jointly issued this pre-publication draft of NCHRP...

Summary of Transportation Research Needs Related to COVID-19 Summary of Transportation Research Needs Related to COVID-19
Transportation Research Circular E-C267
November 05, 2020
Coronavirus (COVID-19) has proven a formidable adversary worldwide, with tremendous impact on the United States. The transportation system is an essential element of our response to this pandemic but has also been significantly impacted across all modes, both passenger and goods movement. This environment is where research is needed most. TRB's Transportation Research Circular E-C267: Summary of T...

A Pandemic Playbook for Transportation Agencies A Pandemic Playbook for Transportation Agencies
NCHRP Research Report 963/TCRP Research Report 225
November 01, 2020
Understanding pandemics, their impacts to transportation, and potential effective response has become more important, not only for the response to COVID-19, but also if, as the World Health Organization warns, we are now “living in a time of viruses.” TRB's National Cooperative Highway Research Program and Transit Cooperative Research Program have jointly issued this pre-publication draft of NCHRP...

Non-Contact Scour Monitoring System for Railroad Bridges Non-Contact Scour Monitoring System for Railroad Bridges
October 19, 2020
Although researchers have developed instrumentation for scour detection around bridge piers, the current state-of-the-art practice relies upon visual inspection by divers. As a potential alternative to the traditional methods, this research explored the possibilities of using non-contact and remote sensing-based laser ranging technique for scour mapping and monitoring. The TRB IDEA (Innovations De...

Transportation Asset Management in a COVID-19 World Transportation Asset Management in a COVID-19 World
Transportation Research Circular E-C266
October 07, 2020
The COVID-19 pandemic has impacted transportation agencies across the U.S. in a variety of ways. On July 15, 2020, TRB's Transportation Asset Management Committee hosted a webinar that featured executives and CEOs from state, regional, and transit agencies. Transportation Research Circular E-C266: Transportation Asset Management in a COVID-19 World captures the details of the discussion on how the...

Transportation Resilience 2019: 2nd International Conference on Resilience to Natural Hazards and Extreme Weather Transportation Resilience 2019: 2nd International Conference on Resilience to Natural Hazards and Extreme Weather
Transportation Research Circular E-C265
September 29, 2020
TRB hosted the Transportation Resilience 2019: 2nd International Conference on Transportation Resilience to Natural Hazards and Extreme Weather Events (TR2019) at the National Academy of Sciences Building in Washington, D.C., November 13–15, 2019. The primary purpose of TR2019 program was to present advancements made in transportation systems resilience to natural hazards, climate change, and impa...

TR News: Integrating Stormwater Infrastructure into State Department of Transportation Processes TR News: Integrating Stormwater Infrastructure into State Department of Transportation Processes
September 24, 2020
The Alabama Department of Transportation (DOT) incorporated post-construction stormwater management design into the overall roadway design process. The Texas DOT developed the approval process for products used in the construction of a roadway to promote vegetation. And the Virginia DOT improved the management of data associated with stormwater infrastructure best management practices to effective...

TR News July-August 2020 issue table of contents now online TR News July-August 2020 issue table of contents now online
September 17, 2020
The July-August 2020 issue of TR News —with a focus on stormwater—is available in hard copy and digital copy for subscribers. For those who are not subscribers, the table of contents is available. Feature articles in the issue include "Integrating Stormwater Infrastructure into State Department of Transportation Processes," "Transportation Perspective on Virginia’s Nonpoint Source Nutrient Credit ...

Critical Issues in Transportation 2019 Critical Issues in Transportation 2019
Critical Issues in Transportation 2019
September 17, 2020
The coronavirus (COVID-19) pandemic and equity issues will be included soon in   Critical Issues in Transportation 2019 . In this report, which is updated periodically by the TRB Executive Committee, a series of challenging questions are posed to explore issues and opportunities that may arise 10 to 20 years into the future. These questions, 63 in all, have been organized into 12 topic areas ...

TR News March-April 2020: A Century of Progress ... Foundation for the Future TR News March-April 2020: A Century of Progress ... Foundation for the Future
September 10, 2020
Issue 326 of TRB's magazine dives into details from the TRB 99th Annual Meeting, which had a record crowd of nearly 14,000 attendees gathered January 12–16, 2020, in Washington, D.C. The March–April 2020 TR News features photo highlights from the Annual Meeting along with more coverage of the conference. TR News is TRB's bimonthly magazine featuring timely articles on innovative and state-of-the-a...

TR News May-June 2020 issue table of contents now online TR News May-June 2020 issue table of contents now online
August 13, 2020
The May–June 2020 issue of TR News is a special edition illuminating the many hidden aspects of tunnels as well as the benefits of tunnel technology to modern transportation systems. Articles highlight the contribution of tunnels to the economy and how transportation operators use the best technology to keep tunnels efficient and safe.

Performance-Based Pavement Warranty Practices Performance-Based Pavement Warranty Practices
NCHRP Synthesis 553
July 20, 2020
Pavement warranties have been common in the United States at various points in time, coming back into favor during the 1990s. While there is no national pavement warranty standard, agencies have developed their own specifications with varying criteria. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 553: Performance-Based Pavement Warranty Practices documents highway agency...

The Transportation Research Board, 1920-2020; Everyone Interested is Invited - ebook versions now available The Transportation Research Board, 1920-2020; Everyone Interested is Invited - ebook versions now available
June 25, 2020
The TRB Centennial Book is available for purchase in ebook or print format. In The Transportation Research Board, 1920–2020: Everyone Interested Is Invited , author Sarah Jo Peterson tells the story of how people and institutions created and have continued to shape TRB. In a compelling narrative accompanied by more than 150 images exploring the history of transportation and research, she argues th...

Potential Liability Associated with Unstable Slope Management Programs Potential Liability Associated with Unstable Slope Management Programs
NCHRP Legal Research Digest 82
June 15, 2020
Slope failures pose serious risks for state transportation agencies and federal agencies that own or maintain roads, highways, and/or adjacent property. Many transportation agencies have adopted unstable slope management programs and standards as part of a larger effort to provide an efficient and effective methodology to prevent or control landslides or rockfalls. The TRB National Cooperative Hig...

TR News 326: A Century of Progress ... Foundation for the Future TR News 326: A Century of Progress ... Foundation for the Future
May 15, 2020
Issue Number 326 of TR News magazine is available in full to subscribers. Here is a sample from the issue: a 14-page photo collage of the 99th Transportation Research Board Annual Meeting from January 12–16, 2020 in Washington, D.C. Do you see yourself in any of the photos?

TR News 326: March-April 2020 table of contents now online TR News 326: March-April 2020 table of contents now online
May 07, 2020
The March-April 2020 issue of TR News (#326) - including a cover feature on TRB's "century of progress and foundation for the future" of transportation research - is available in hard copy and digital copy for subscribers. For those who are not subscribers, the table of contents is available. Other feature articles in the issue include ones on whether research processes can keep up, accessible rai...

TR News November-December 2019: Climate Change Resilience TR News November-December 2019: Climate Change Resilience
April 30, 2020
Topics in the November–December 2019 issue of TR News include an analysis of the #TRBAM Annual Meeting Twitter hashtag to understand communication dynamics; climate change, a critical transportation issue; assessing, marking, and coding highway structures in emergencies; and more. This issue also kicks off the magazine’s yearlong celebration of the 100th anniversary of TRB, which will include them...

Existing and Emerging Highway Infrastructure Preservation, Maintenance, and Renewal Definitions, Practices, and Scenarios Existing and Emerging Highway Infrastructure Preservation, Maintenance, and Renewal Definitions, Practices, and Scenarios
NCHRP Web-Only Document 272
April 23, 2020
The National Cooperative Highway Research Program's NCHRP Web-Only Document 272: Existing and Emerging Highway Infrastructure Preservation, Maintenance, and Renewal Definitions, Practices, and Scenarios provides appendices to NCHRP Report 750, Volume 7: Preservation, Maintenance, and Renewal of Highway Infrastructure .

TR News: Data's Critical Role in Transportation Decisions TR News: Data's Critical Role in Transportation Decisions
April 02, 2020
One of the most time-honored of the technical activities that TRB performs, state visits revealed lots of interesting issues in 2019, including a lot around the important role state Departments of Transportation increasingly have around data needs. The TRB staff summary of the visits, each of which last one or two days and typically consist of meetings with various levels of DOT management; discus...

Strategic Issues Facing Transportation, Volume 7: Preservation, Maintenance, and Renewal of Highway Infrastructure Strategic Issues Facing Transportation, Volume 7: Preservation, Maintenance, and Renewal of Highway Infrastructure
NCHRP Report 750
March 25, 2020
The transportation industry faces a wide range of plausible future drivers and scenarios that could affect standard practices over the next 30 to 50 years. Because the range of plausible futures over such a long-term period is very broad, making a focused prediction of the implications for highway infrastructure preservation, maintenance, and renewal (PMR) is quite challenging. The TRB National Co...

TR News September-October 2019: Transportation Workforce of the Future TR News September-October 2019: Transportation Workforce of the Future
March 19, 2020
Issue 323 of TRB's magazine complements our recent short video Your Future in Transportation . The September-October 2019 issue  has several features on the workforce topic, including ones called " People, Organizations, Jobs, and Businesses for Tomorrow’s Transportation, "The Future Multimodal Workforce," "How to Win the War for Talent," and "Building a Business Case for Increasing Diversity...

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