Category: News

  • ACRP Report 60: Guidelines for Integrating Alternative Jet Fuel into the Airport Setting

    Cover imageTRB\’s Airport Cooperative Research Program (ACRP) Report 60: Guidelines for Integrating Alternative Jet Fuel into the Airport Setting identifies the types and characteristics of alternative jet fuels; summarizes potential benefits; addresses legal, financial, environmental, and logistical considerations and opportunities; and aids in evaluating the feasibility of alternative jet fuel production facilities.

    The report also summarizes issues and opportunities associated with locating on- or off-airport alternative jet fuel production facilities and their fuel storage and distribution requirements.

  • ACRP Synthesis 30: Airport Insurance Coverage and Risk Management Practices

    Cover imageTRB\’s Airport Cooperative Research Program (ACRP) Synthesis 30: Airport Insurance Coverage and Risk Management Practices identifies both the variables that affect insurance purchasing for airport operators and the range of risk management practices that exist among U.S. airports. The report is designed to help airport officials confronted with risk-financing and insurance-purchasing decisions.

  • NCHRP Research Results Digest 359: Models to Support State-Owned Park and Ride Lots and Intermodal Facilities

    Cover imageTRB\’s National Cooperative Highway Research Program (NCHRP) Research Results Digest 359: Models to Support State-Owned Park and Ride Lots and Intermodal Facilities addresses the needs and issues associated with state park and ride lots and intermodal commuter facilities and programs. The report identifies deficiencies, best practices, and promising innovations.

  • CTBSSP Research Results Digest 9: Commercial Truck and Bus Safety Synthesis Program: A Status Report 2012

    Cover imageTRB\’s Commercial Truck and Bus Safety Synthesis Program (CTBSSP) Research Results Digest 9: A Status Report describes the progress and status of the Commercial Truck and Bus Safety Synthesis Program (CTBSSP). CTBSSP is a cooperative research program sponsored by the Federal Motor Carrier Safety Administration (FMCSA) and administered by the Transportation Research Board. The program was authorized in late 2001 and began in 2002 in support of the FMCSA\’s safety research programs.

  • NCFRP Research Results Digest 3: National Cooperative Freight Research Program: A Status Report 2011

    Cover imageTRB\’s National Cooperative Freight Research Program (NCFRP) Research Results Digest 3, NCFRP: A Status Report is a staff digest of the progress and status of the program. The NCFRP is a cooperative research program sponsored by the Research and Innovative Technology Administration (RITA) and administered by the Transportation Research Board. The program was authorized in 2005 with the passage of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU).

  • TCRP Research Results Digest 104: Synthesis of Information Related to Transit Problems: 2012

    Cover imageTRB\’s Transit Cooperative Research Program (TCRP) Research Results Digest 104: Synthesis of Information Related to Transit Problems is a digest of the progress and status of TCRP Project J-7, “Synthesis of Information Related to Transit Problems,” for which the Transportation Research Board is the agency conducting the research.

  • ACRP Research Results Digest 13: Synthesis of Information Related to Airport Practices: 2012

    Cover imageTRB\’s Airport Cooperative Research Program (ACRP) Research Results Digest 13: Synthesis of Information Related to Airport Practices is a digest of the progress and status of ACRP Project 11-03, Synthesis of Information Related to Airport Practices.

  • NCHRP Synthesis 423: Long-Term Performance of Polymer Concrete for Bridge Decks

    Cover imageTRB\’s National Cooperative Highway Research Program (NCHRP) Synthesis 423: Long-Term Performance of Polymer Concrete for Bridge Decks addresses a number of topics related to thin polymer overlays (TPOs).

    Those topics include previous research, specifications, and procedures on TPOs; performance of TPOs based on field applications; the primary factors that influence TPO performance; current construction guidelines for TPOs related to surface preparation, mixing and placement, consolidation, finishing, and curing; repair procedures; factors that influence the performance of overlays, including life-cycle cost, benefits and costs, bridge deck condition, service life extension, and performance; and successes and failures of TPOs, including reasons for both.

  • NCHRP Research Results Digest 365: Sustainable Pavement Maintenance Practices

    Cover imageTRB\’s National Cooperative Highway Research Program (NCHRP) Research Results Digest 365: Sustainable Pavement Maintenance Practices highlights the current practice in sustainable pavement maintenance and preservation.

    The report is designed to help quantify and understand how pavement maintenance and preservation practices minimize environmental impacts.

    As part of the development of this report, a general survey on sustainable pavement preservation and maintenance practices was issued to the state and provincial maintenance engineers in the United States and Canada. The full results of the survey and a summary of the survey are available for download as the following appendixes to NCHRP RRD 365.

    Appendix A: Survey Results
    Appendix B: Summary of Survey Results

  • ACRP Report 59: Information Technology Systems at Airports–A Primer

    Cover imageTRB\’s Airport Cooperative Research Program (ACRP) Report 59: Information Technology Systems at Airports–A Primer is designed to help facilitate mutual understanding between airport executives and information technology (IT) professionals to enable them to work together effectively on IT projects. One of the goals of the report is to help airports achieve better performance and reliability of IT systems and fewer cost overruns and delays during system implementation.

    ACRP Report 59 offers techniques to identify critical IT issues and communicate effectively on those issues. The report also addresses sound IT principles for implementing new IT systems, describes the benefits and value of various IT systems, and highlights the fundamental architecture concepts of IT systems as they relate to airports.

  • NCHRP Report 707: Guidelines on the Use of Auxiliary Through Lanes at Signalized Intersections

    Cover imageTRB\’s National Cooperative Highway Research Program (NCHRP) Report 707: Guidelines on the Use of Auxiliary Through Lanes at Signalized Intersections provides guidelines to help in the justification, design, and analysis of auxiliary through lanes (ATLs) at signalized intersections.

    ATLs are lanes for through movements that begin upstream of a signalized intersection and end downstream of the intersection. ATLs are potentially a moderate-cost approach to increase intersection and overall corridor capacity.

    A report that describes the research related to the development of NCHRP Report 707 has been released as NCHRP Web-Only Document 178: Assessment of Auxiliary Through Lanes at Signalized Intersections.

    A spreadsheet-based computational engine is also available online.

    Spreadsheet 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.

  • ACRP Report 56: Handbook for Considering Practical Greenhouse Gas Emission Reduction Strategies for Airports

    Cover imageTRB\’s Airport Cooperative Research Program (ACRP) Report 56: Handbook for Considering Practical Greenhouse Gas Emission Reduction Strategies for Airports is designed to assist airport operators in identifying, evaluating, prioritizing, and implementing practical, low-cost strategies to reduce and manage greenhouse gas emissions.

    AirportGEAR, an interactive decision support tool developed as a companion to the handbook, considers a range of strategies that can be implemented by all types of airports—regardless of size, geography, or resources—either directly or in partnership with airport stakeholders, including airlines, airport tenants, and host communities. AirportGEAR is on a CD-ROM that is included with the print version of ACRP Report 56.

    The CD-ROM is also available for download 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 Image

    Download 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.

    A report documenting the research method used to develop the handbook, fact sheets, and decision support tool is available for download.

  • NCHRP Report 714: Special Mixture Design Considerations and Methods for Warm-Mix Asphalt: A Supplement to NCHRP Report 673: A Manual for Design of Hot-Mix Asphalt with Commentary

    Cover imageTRB\’s National Cooperative Highway Research Program (NCHRP) Report 714: Special Mixture Design Considerations and Methods for Warm-Mix Asphalt: A Supplement to NCHRP Report 673: A Manual for Design of Hot-Mix Asphalt with Commentary presents special mixture design considerations and methods used with warm-mix asphalt.

    NCHRP Report 714 is a supplement to NCHRP Report 673: A Manual for Design of Hot-Mix Asphalt. All references to chapters in NCHRP Report 714 refer to the corresponding chapters in NCHRP Report 673.

  • TCRP Report 153: Guidelines for Providing Access to Public Transportation Stations

    Cover imageTRB\’s Transit Cooperative Research Program (TCRP) Report 153: Guidelines for Providing Access to Public Transportation Stations is intended to aid in the planning, developing, and improving of access to high capacity commuter rail, heavy rail, light rail, bus rapid transit, and ferry stations. The report includes guidelines for arranging and integrating various station design elements.

    The print version of TCRP Report 153 is accompanied by a CD-ROM that includes a station access planning spreadsheet tool that allows trade-off analyses among the various access modes–automobile, transit, bicycle, pedestrian, and transit-oriented development–for different station types. The appendices to TCRP Report 153 are also available on the CD-ROM.

    The items contained in the CD-ROM are also available for download below.

  • Access Planning Spreadsheet Tool
  • Appendix A: Summary of Stakeholder Survey and Literature Review
  • Appendix B: Overview of Existing Analysis and Evaluation Tools
  • Appendix C: Spreadsheet-Based Access Tool and Instructions
  • Appendix D: Detailed Station-Level Access Data
  • Appendix E: Detailed Station Access Case Studies
    In 2009 TRB released TCRP Web-Only Document 44: Literature Review for Providing Access to Public Transportation Stations, which describes the results of the literature review associated with the project that developed TCRP Report 153.
  • NCFRP Report 14: Guidebook for Understanding Urban Goods Movement

    Cover imageTRB\’s National Cooperative Freight Research Program (NCFRP) Report 14: Guidebook for Understanding Urban Goods Movement is designed to help facilitate decisions that accommodate and expedite urban goods movement while minimizing the environmental impact and community consequences of goods movement.

    The guidebook and cases studies are designed to help decision makers better understand the potential impacts of their urban goods movement decisions on transportation infrastructure and operations; land use and site design; and laws, regulations, and ordinances applicable to urban areas.

    The guidebook includes case studies that explore how urban supply chains connect to the urban economy, infrastructure, and land use patterns; their impacts on land use codes and regulations governing metropolitan goods movement of private-sector freight providers; and planning strategies for potentially improving mobility and access for goods movements in urban areas.

    The print version of the NCFRP Report 14 includes a CD-ROM that includes a report and appendices on the process that developed the guidebook, and two PowerPoint presentations with speaker notes that transportation planners may use to help explain how local decision makers might enhance mobility and access for goods movement in their area.

    The CD-ROM is also available for download 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 Image

    Download 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.

  • ACRP Research Results Digest 15: Use of Towbarless Tractors at Airports—Best Practices

    Cover imageTRB\’s Airport Cooperative Research Program (ACRP) Research Results Digest 15: Use of Towbarless Tractors at Airports—Best Practices includes broad guidance designed to help enhance the safe operation of towbarless tractors (TBLTs) at airports.

    The report is designed to assist airports and aircraft operators in gaining a basic understanding of the training and operational issues associated with TBLT operations.

    TBLTs, also known as towbarless tow vehicles (TLTVs), are used to tow aircraft on the airport. TBLTs, as the name implies, do not use a towbar but instead use a pick-up device located in the center of the vehicle to cradle the nose gear tires in order to provide direct maneuvering of the aircraft.

  • NCHRP Research Results Digest 368: State DOT Financial Auditing Requirements for Public Transportation Assistance Programs

    Cover imageTRB\’s National Cooperative Highway Research Program (NCHRP) Research Results Digest 368: State DOT Financial Auditing Requirements for Public Transportation Assistance Programs identifies various financial policies and procedures used by states for conducting grantee financial audits.

    The report documents policies, procedures, and practices used by some state departments of transportation designed to enhance and streamline their current financial auditing requirements.

  • NCFRP Report 16: Preserving and Protecting Freight Infrastructure and Routes

    Cover imageTRB\’s National Cooperative Freight Research Program (NCFRP) Report 16: Preserving and Protecting Freight Infrastructure and Routes provides guidance to decision makers involved in freight facility operations, freight transportation planning, and land use on how to avoid conflicting land uses or mitigate existing uses.

    The report provides information about freight transportation and its importance to people\’s everyday lives; illustrates the types of conflicts between freight and other land uses and their consequences; and provides tools and resources designed to help preserve facilities and corridors, including prevention or resolution of conflicts.

    In addition to the report, EnvisionFreight.com was developed as part of this project. The website is designed to complement the report by including more detailed materials then could be included in the report.

    A CD-ROM packaged with the print version of the report includes the appendices to 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 Image

    Download 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.

  • TCRP Synthesis 97: Improving Bus Transit Safety Through Rewards and Discipline

    Cover imageTRB\’s Transit Cooperative Research Program (TCRP) Synthesis 97: Improving Bus Transit Safety Through Rewards and Discipline addresses the practices and experiences of public transit agencies in applying both corrective actions and rewards to recognize, motivate, and reinforce a safety culture within their organizations.

  • NCHRP Legal Research Digest 57: Tort Liability Defense Practices for Design Flexibility

    Cover imageTRB\’s National Cooperative Highway Research Program (NCHRP) Legal Research Digest 57: Tort Liability Defense Practices for Design Flexibility focuses on tort liability defense practices and cases involving the exercise of discretion in design. The report is designed to help provide a framework for determining potentially successful strategies to employ when defending design decisions made following the principles of context sensitive solutions.