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Transit Cooperative Research Program (TCRP) Research Results Digests (RRDs)

RRDs are used to promote early awareness of project results in order to encourage implementation. RRDs also summarize specific findings that emphasize how the research may be used. The contents are organized in terms of the problem and the solution to it, the findings, and the applications. RRDs generally run 4–32 printed pages.

Synthesis of Information Related to Transit Problems: 2012Synthesis of Information Related to Transit Problems: 2012
February 4, 2012
TRB’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.

Sustainable Public Transportation: Environmentally Friendly MobilitySustainable Public Transportation: Environmentally Friendly Mobility
December 12, 2011
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 103: Sustainable Public Transportation: Environmentally Friendly Mobility is an overview of an international study mission that explored how public transportation systems in several cities in India and China have implemented plans, policies, technologies, and strategies for creating more livable communities through bus, m...

Public Transportation Systems as the Foundation for Economic GrowthPublic Transportation Systems as the Foundation for Economic Growth
June 27, 2011
TRB’s Transit Cooperative Research Program (TCRP) RRD 102: Public Transportation Systems as the Foundation for Economic Growth examines how transit investments are linked to economic growth and recovery in several cities in Turkey, Egypt, and South Africa.

Funding for Infrastructure Maintenance: Achieving and Sustaining a State of Good RepairFunding for Infrastructure Maintenance: Achieving and Sustaining a State of Good Repair
June 27, 2011
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 101: Funding for Infrastructure Maintenance: Achieving and Sustaining a State of Good Repair examines how bus and rail agencies and operators in several European cities develop community support for public transportation and how those communities implement sustainable funding strategies for transit assets, operations, and...

Professional Certification and Credentialing Program for the Transit IndustryProfessional Certification and Credentialing Program for the Transit Industry
April 21, 2011
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 100: Professional Certification and Credentialing Program for the Transit Industry explores the findings of a literature review and a gap analysis of the efficacy of four transit-specific professional development programs. The report also examines potential strategies that might be used to deploy and maintain a transit in...

Improving Mobility for VeteransImproving Mobility for Veterans
April 27, 2011
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 99: Improving Mobility for Veterans mobility explores issues facing our veterans and illustrates some potential strategies for community transportation providers who are interested in enhancing mobility options for our veterans.

Synthesis of Information Related to Transit Problems: 2011Synthesis of Information Related to Transit Problems: 2011
February 3, 2011
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 98: 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.

Transit Agency Compliance with Title VI: Limited English Proficiency RequirementsTransit Agency Compliance with Title VI: Limited English Proficiency Requirements
February 2, 2011
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 97: Transit Agency Compliance with Title VI: Limited English Proficiency Requirements explores the legal issues associated with transit operators’ limited English proficiency (LEP) compliance efforts. The digest is designed to serve as a single source of information concerning the development and current status of transit...

Managing Increasing Ridership DemandManaging Increasing Ridership Demand
September 14, 2010
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 96: Managing Increasing Ridership Demand documents a 2009 study mission to Guayaquil, Ecuador; Santiago, Chile; Buenos Aires, Argentina; and Porto Alegre, Brazil, that investigated how transit operators and agencies in these cities accommodated sudden and significant growth in the number of riders and increasing dema...

Performance Measurement and OutcomesPerformance Measurement and Outcomes
April 23, 2010
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 95: Performance Measurement and Outcomes explores how performance measurements are used to achieve organizational goals and enhance quality of service at public transport planning, funding, and operating agencies in Hong Kong, Special Administrative Region of the People’s Republic of China; in the city-state of Singapore;...

Synthesis of Information Related to Transit Problems: 2010Synthesis of Information Related to Transit Problems: 2010
February 1, 2010
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 94: 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.

Balancing Infrastructure Reinvestment with System ExpansionBalancing Infrastructure Reinvestment with System Expansion
November 6, 2009
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 92: Balancing Infrastructure Reinvestment with System Expansion explores how public transport agencies in Australia are balancing the need to increase capacity and expand service while maintaining and upgrading their existing bus, tram, rail, and ferry infrastructure.

Rural Transit Achievements: Assessing the Outcomes of Increased Funding for Rural Passenger Services Under SAFETEA-LURural Transit Achievements: Assessing the Outcomes of Increased Funding for Rural Passenger Services Under SAFETEA-LU
October 1, 2009
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 93: Rural Transit Achievements: Assessing the Outcomes of Increased Funding for Rural Passenger Services Under SAFETEA-LU (the Safe, Accountable, Flexible, and Efficient Transportation Equity Act: A Legacy for Users) is a summary of a report that explores data and information on the changes in rural public and intercity b...

Synthesis of Information Related to Transit Problems: 2009Synthesis of Information Related to Transit Problems: 2009
February 4, 2009
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 91: 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.

A Guide to Planning Resources on Transportation and HazardsA Guide to Planning Resources on Transportation and Hazards
September 29, 2009
TRB's National Cooperative Highway Research Program (NCHRP) and Transit Cooperative Research Program (TCRP) have jointly released A Guide to Planning Resources on Transportation and Hazards. The report was published as NCHRP Research Results Digest (RRD) 333 and as TCRP RRD 90. The report highlights a framework for thinking about the stages of a disaster, and identifies some of the most current...

Public Transportation's Role in Addressing Global Climate ChangePublic Transportation's Role in Addressing Global Climate Change
March 25, 2009
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 89: Public Transportation’s Role in Addressing Global Climate Change provides an overview of an International Transit Studies Program mission that investigated public transportation’s role in addressing global climate change in several cities in Ireland, Germany, Italy, and Spain.

Innovative Practices in Transit Workforce DevelopmentInnovative Practices in Transit Workforce Development
July 14, 2008
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 88: Innovative Practices in Transit Workforce Development examines innovative practices in workforce development in several cities in Canada, France, and Belgium.

Emergency Preparedness, Response, and Recovery in the Transit IndustryEmergency Preparedness, Response, and Recovery in the Transit Industry
May 16, 2008
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 87: Emergency Preparedness, Response, and Recovery in the Transit Industry explores emergency preparedness programs in public transportation systems in several Asian cities.

Synthesis of Information Related to Transit ProblemsSynthesis of Information Related to Transit Problems
January 24, 2008
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 86: 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.

Rail Passenger Safety: Equipment and TechnologiesRail Passenger Safety: Equipment and Technologies
August 30, 2007
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 85, Rail Passenger Safety: Equipment and Technologies provides an overview of a study mission performed October 13-28, 2006, that investigated European rail safety programs.  Over their two weeks in Europe, study mission team members visited organizations and facilities in Berlin and Hennigsdorf, Germany; Reic...

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