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    TR News 330 November-December 2020: Asphalt Recycling: History of Recycled Materials and Lessons Learned About Recycling Plastic
    3/4/2021 8:02:05 PM
    Recycling is a concept that most of society supports as a practice that can benefit the environment and overall well-being, as well as reduce the needs and costs associated with raw materials. However, the conversation needs to shift from just recycling to responsible recycling. This is the focus of a feature article in the November-December 2020 issue of TRB's magazine, TR News (Issue 330). TR News  is TRB's bimonthly magazine featuring timely articles on innovative and state-of-the-art research an...


    Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging
    3/3/2021 12:53:31 PM
    Asphalt binders experience aging that occurs in two distinct stages under quite different conditions: (1) short-term during construction (plant mixing, storage, placement, and compaction) and (2) long-term during the service life of the pavement. The TRB National Cooperative Highway Research Program's pre-publication of NCHRP Research Report 967: Asphalt Binder Aging Methods to Accurately Reflect Mixture Aging documents research conducted to improve laboratory binder conditioning methods to accurately si...


    TR News 330 November-December 2020: Living with Transformational Technologies and Other Surprises
    2/19/2021 3:02:05 PM
    British–Hungarian Nobel Prize physicist Dennis Gabor wrote: “The future cannot be predicted, but futures can be invented." Considering in a reasonable and logical way what the implications of new technologies may be and acting on our conclusions is how the future is invented. This is the focus of a feature article in the November-December 2020 issue of TRB's magazine, TR News (Issue 330). TR News  is TRB's bimonthly magazine featuring timely articles on innovative and state-of-the-art research and p...


    TR News 328 July-August 2020: Stormwater
    2/12/2021 6:00:49 PM
    Issue 328 of TRB's magazine, TR News , is dedicated to water and the role of transportation agencies in the stewardship of this vital resource, particularly as the way humans use water is changing dramatically. Authors explore the evolution of stormwater regulation; how departments of transportation manage water in planning, design, construction, and operations; and more. TR News  is TRB's bimonthly magazine featuring timely articles on innovative and state-of-the-art research and practice in all mo...


    TR News 327 May-June 2020: Tunnels
    2/10/2021 3:00:51 PM
    Issue 327 of TRB's magazine 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. TR News  is TRB's bimonthly magazine featuring timely articles on innovative and state-of-the-art research and practice in all modes of transportation. It also includes brie...


    Entrained Air-Void Systems for Durable Highway Concrete
    2/3/2021 4:16:16 PM
    Laboratory testing and field experience have shown that highway concrete should be properly air entrained to resist the action of freezing and thawing, particularly in wet climates. Several gaps in the state of the knowledge still exist. The TRB National Cooperative Highway Research Program's NCHRP Research Report 961: Entrained Air-Void Systems for Durable Highway Concrete addresses these gaps and, more specifically, investigates innovative test methods for effectively characterizing the air system in f...


    Proposed AASHTO Practice and Tests for Process Control and Product Acceptance of Asphalt-Treated Cold Recycled Pavements
    1/22/2021 6:13:52 PM
    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 in previous national research efforts. The TRB National Cooperative Highway Research Program's  NCHRP Re...


    TR News 330 November-December 2020 issue table of contents now online
    1/20/2021 3:09:33 PM
    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 Materials and Lessons Learned About Recycling Plastic," and much more. This is Issue 330. To subscribe to TR News...


    TR News September-October 2020: Embracing the Future
    1/7/2021 9:31:14 AM
    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 they contemplate new directions for transportation. TR News is TRB's bimonthly magazine featuring timely artic...


    COVID-19 Addendum to Critical Issues in Transportation
    1/6/2021 5:05:19 PM
    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 economy. In this addendum to Critical Issues in Transportation 2019 , the Transportation Research Board (TRB...


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