All transit agencies must provide complementary paratransit service to eligible people, as required under the Americans with Disabilities Act (ADA). This includes origin-to-destination service for their ADA complementary paratransit riders. The TRB Transit Cooperative Research Program's TCRP Research Results Digest 115: Use of Agency Service Agreements in ADA Paratransit Delivery identifies and do...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 114: Synthesis of Information Related to Transit Practices is a digest of the progress and status of TCRP Project J-7, “Synthesis of Information Related to Transit Practices,” for which the Transportation Research Board is the agency conducting the research.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 112: Contracting Commuter Rail Services provides guidance for public agencies and other key stakeholders in contracting commuter rail services. The digest presents potential approaches for contracting commuter rail services, an evaluation of the approaches, and guidance on how and when to apply different approaches to existi...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 111: Synthesis of Information Related to Transit Practices is a digest of the progress and status of TCRP Project J-7, “Synthesis of Information Related to Transit Practices,” for which the Transportation Research Board is the agency conducting the research.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 113: Synthesis of Information Related to Transit Practices is a digest of the progress and status of TCRP Project J-7, “Synthesis of Information Related to Transit Practices,” for which the Transportation Research Board is the agency conducting the research.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 110: 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.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 109: Impact of the Affordable Care Act on Non-Emergency Medical Transportation (NEMT): Assessment for Transit Agencies assesses the potential impact of implementing the NEMT provision of the Affordable Care Act on a state-by-state basis. The report also collates information to inform the transit community on how public trans...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 108: 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.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 107: Developing Partnerships between Transportation Agencies and the Disability and Underrepresented Communities includes best practices and outreach strategies and suggestions that can be used by transit personnel to develop and maintain partnerships with the disability and underrepresented communities. The guide includes “...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 106: 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.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 105: Summary of Research Findings: Assessing and Comparing Environmental Performance of Major Transit Investments offers decision makers optional criteria, metrics, and methods to help assess the environmental performance of transit projects. The final report of the research project that was used to produce TCRP RRD 105 was ...

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.

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, metr...

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.

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 ma...

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 indus...

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.

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.

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 LE...

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 demand ...

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; in...

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.

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 bus ...

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.

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.

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 an...

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.

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.

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.

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.

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; Reichsh...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 84: Audible Signals for Pedestrian Safety in LRT Environments examines the application of audible signals for pedestrian safety in light rail transit (LRT) environments.  The report includes descriptions of audible signal systems and associated operating procedures, their integration with other crossing measures,...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 83: Performance and Testing Requirements for Portable Track Geometry Inspection Systems examines portable track geometry measurement systems and their applicability to transit operations.  The report also explores performance guidelines and testing requirements for use by transit agencies in evaluating and select...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 82: Use of Guard/Girder/Restraining Rail explores the application of guard/girder/restraining rails by transit systems in order to improve vehicle curving performance, to reduce risk of flange climb derailment, and to control wheel and rail wear.

TRB’s Transit Cooperative Research Program (TCRP) RRD 81: Coordinated Approaches to Expanding Access to Public Transportation explores a study mission that examined coordinated approaches to expanding access to public transportation in the United Kingdom, the Netherlands, Sweden, and France.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 80: 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.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 79: Design of Track Transitions explores various transit track transition designs among ballasted and nonballasted track forms and structures and offers guidance to improve track and operating performance.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 78: Managing Capital Costs of Major Federally Funded Public Transportation Projects examines strategies, tools, and techniques to better manage major transit capital projects over $100 million.  The report also examines various estimation, project-management, and cost-containment approaches that were applied to 1...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 77: Innovative Techniques in the Planning and Financing of Public Transportation Projects provides an overview of the study mission performed October 20–November 5, 2005, that investigated innovative techniques in the planning and financing of public transportation projects in Spain, Denmark, the People’s Republic of China,...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 76: Acoustic Rail-Break Detection Demonstration at MTA New York City Transit examines the results of a demonstration of an acoustic-based rail-break detection system that was installed over a 2,200 foot section of track on the “A” line of the Metropolitan Transportation Authority (MTA) New York City Transi...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 75, Executive Summary: Cost-Benefit Analysis of Providing Non-Emergency Medical Transportation examines the relative costs and benefits of providing transportation to non-emergency medical care for individuals who miss or delay healthcare appointments because of transportation issues.  The final report is available as ...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 74: Train Door Systems Analysis examines the development of a relational database for data on the causes and conditions of train door failures and reviews some preliminary analyses of the data.  The appendixes to the report have been published as TCRP Web-Only Document 28.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 73: Synthesis of Information Related to Transit Problems provides information on the mission and goals of the TCRP synthesis program, and describes the progress and status of TCRP synthesis projects.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 72: Guidelines for an Alternative Transit Switch Design includes design guidelines for a new transit switch based partially on longer-lasting, better-performing switches that were developed in the early 20th century, some of which are still in operation today.  The design guidelines described in the report build on tec...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 71: Implementing New Technologies in Maintenance Systems and Departments in Europe summarizes the International Transit Studies Program mission of April 7-22, 2005, that investigated the application of new technologies in bus and rail transit operations in Germany, Austria, and France.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 70: Innovations in Bus, Rail, and Specialized Transit Operations in Latin America summarizes an October 21-November 5, 2004, international study mission to São Paulo, Rio de Janeiro, and Brasília, Brazil; Santiago, Chile; and Quito, Ecuador.  Rapid population growth, high-density areas, an aging population, increased u...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 69: Evaluation of Recent Ridership Increases assesses key factors and initiatives that led to ridership increases at 28 transit agencies, nationwide, for the period 2000 to 2002.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 68: Vehicle Design Standards and Procurement Practices in Europe provides an overview of the study mission performed May 6-21, 2004, that investigated vehicle design standards and procurement practices in Europe.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 67: Synthesis of Information Related to Transit Problems provides information on the mission and goals of the TCRP synthesis program, and describes the progress and status of TCRP synthesis projects.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 66: Transit Design, Construction, and Operations in the Mediterranean Region provides an overview of an international transit studies mission that investigated transit design, construction, and operation in Athens, Greece, and in Naples, Rome, and Milan, Italy.

TRB’s Transit Cooperative Research Program (TCRP) and National Cooperative Highway Research Program (NCHRP) have jointly produced Research Results Digest TCRP 65/NCHRP 288 -- A New Vision of Mobility: Guidance to Foster Collaborative Multimodal Decision Making. The single digest summarizes the results of the first phase of a TCRP and NCHRP jointly funded project that will eventually produce a shor...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 63: Synthesis of Information Related to Transit Problems outlines the TCRP synthesis research process and provides a list of ongoing and completed transit synthesis reports.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 62: International Transit Studies Program: Transit Operations in Central and Eastern Europe includes transportation information on the cities and facilities visited, lessons learned, and discussions of policies and practices that could be applied in the United States.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 61 - Traveler Response to Transportation System Changes: An Interim Introduction to the Handbook is structured to serve as an “Interim Introduction” for the evolving Traveler Response Handbook, replacing Chapter 1, “Introduction” of the “Interim Handbook” (available as TCRP Web Document 12), and facilitating the transition t...

TRB Transit Cooperative Research Program (TCRP) Research Results Digest 60: Characteristics of State Funding for Public Transportation -- 2002 provides information on the nature and magnitude of FY 2002 state transit funding for 46 states and the District of Columbia including state transit funding sources and amounts, programs, eligible uses and allocation, and per capita state transit funding.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 59: A Guide to Public Transportation Security Resources provides a listing of available (or soon-to-be-available) security resources, which can be obtained from public transportation systems, organizations, associations, institutions, and others.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 57: Developing a Recommended Standard for Automated Fare Collection for Transit provides guidance on how best to apply automated fare collection in multi-agency, regional environments.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest Number 56: A Summary of TCRP Report 88 -- A Guidebook for Developing a Transit Performance-Measurement System provides an easy-to-read summary of the guidebook that provides a step-by-step process for developing a performance-measurement program.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 55: Support for Fundamental Change in Public Transportation, addresses major dimensions of fundamental change; illustrates a few extraordinary, fundamental changes that are being pursued by transit organizations; and calls attention to immediate opportunities to support and sustain fundamental change in the U.S. transit indu...

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 54, Emerging Trends in European Public Transport, includes transportation information, lessons learned, and discussions on policies and practices on emerging trends in European public transport that could be applied to the United States.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 52: Transit-Oriented Development and Joint Development in the United States: A Literature Review includes descriptions of the institutional issues related to transit-oriented development and transit joint development, and examples of related impacts and benefits.

TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 51: Second-Train-Coming Warning Sign Demonstration Projects summarizes the results of demonstration projects in Maryland and California concerning second-train-coming warning signs for light rail transit systems.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 50: Legal Aspects of Transit and Intermodal Transportation Programs describes the progress and status of TCRP Project J-5, “Legal Aspects of Transit and Intermodal Transportation Programs,” for which the Transportation Research Board is the agency conducting research.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 49: Excellence in Transit Operations in Small and Medium European Cities provides an overview of the European mission focusing on excellence in transit operations in small to medium-sized cities. It is based on individual reports provided by the team members (for a listing of team members, see Appendix A), who are responsibl...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 48: Synthesis of Information Related to Transit Problems describes 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.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 47: Germany's Track-Sharing Experience: Mixed Use of Rail Corridors summarizes the 12th study mission performed under TCRP Project J-3, “International Studies Program.” The report includes information on the cities visited, lessons learned, and discussions of policies and practices that might be applied in the United States.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 46: Supplemental Analysis of National Survey on Contracting Transit Services describes findings from a followon study designed to analyze in greater detail the data obtained from the agency and general manager surveys on contracting conducted as part of the study, “Contracting for Bus and Demand-Responsive Transit Services: ...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 45: Identification of the Critical Workforce Development Issues in the Transit Industry identifies the key workforce challenges facing the public transportation industry, identifies current approaches to addressing those challenges, and suggests an agenda that the public transportation industry can use to move forward in the...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 44: Consensus Standards for the Rail Transit Industry provides information on the successful implementation of a comprehensive standards process for the rail transit industry using American National Standards Institute (ANSI) consensus procedures under the aegis of the Institute of Electrical and Electronic Engineers (IEEE) ...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 43: Supplementing and Updating TCRP Report 52: Joint Operation of Light Rail Transit or Diesel Multiple Unit Vehicles with Railroads supplements and updates TCRP Report 52, “Joint Operation of Light Rail Transit or Diesel Multiple Unit Vehicles with Railroads,” published in May 1999. This digest updates information in TCRP R...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 42: Technology and Joint Development of Cost-Effective Transit Systems in the Asian Pacific Region summarizes the Asian Pacific region mission performed under TCRP Project J-3, “International Transit Studies Program.” The report includes transportation information on the cities and facilities visited, lessons learned, and di...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 41: Guidelines for Collecting, Analyzing, and Reporting Transit Crime Data presents findings about current methods for collecting, analyzing, and using data on transit-related crime to make decisions on personnel deployment and on allocation of security resources. The findings are based on telephone interviews and on informa...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 40: Revised Inventory Management Desk Guide summarizes the results from five case studies conducted and analyzed to determine the relationship between inventory control and management, the conditions under which inventory management techniques are best applied, and the solutions to potential problems when applying the invent...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 39: Alternative-Fuel Transit Bus Hazard Assessment Model summarizes the findings from TCRP Project C-11, "Hazard Assessment of Alternative-Fuel-Related Systems in Transit Bus Operations."

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 38: Operational Analysis of Bus Lanes on Arterials: Application and Refinement analyzes the performance of buses along bus lanes on downtown streets. Additional field observations and measurements were used to test and refine the bus capacity and speed estimating procedures set forth in TCRP Report 26, “Operational Analyses ...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 37: Synthesis of Information Related to Transit Problems provides 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.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 35: Highlights of the Transit Capacity and Quality of Service Manual: First Edition and its companion, TCRP Web Document 6, will be of interest to anyone who designs or sponsors transit services. It contains the basic capacity and quality of service concepts for bus service, paratransit services, light rail service, and heav...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 34: Light Rail Service: Vehicular and Pedestrian Safety contains information to facilitate the safe, orderly, and integrated movement of all traffic, including light rail vehicles (LRVs), throughout the public highway system, but especially at light rail transit (LRT) crossings. This report is intended to assist those involv...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 33: International Transit Studies Program, Report on the Spring 1998 Mission: Private Urban Transit Systems and Low-Cost Mobility Solutions in Major Latin American Cities summarizes the eighth mission performed under TCRP Project J-3, "International Transit Studies Program" The report includes information on the cities and f...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 32: Accessibility of Automated Fare Vending and Collection for Customers with Disabilities identifies issues of accessibility to automated fare collection and vending machines by transit customers, examines the extent to which these issues arise, and describes solutions that have been implemented or identified as promising.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 30: Trends in Single-Occupant Vehicle and Vehicle Miles of Travel Growth in the United States digest presents key findings from the recently completed TCRP Project H-13B, "Trends in Single-Occupant Vehicle (SOV) and Vehicle Miles of Travel Growth in the United States." The research developed trends and predictions of drive-a...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 29: Continuing Examination of Successful Transit Ridership Initiatives identifies key factors and initiatives that have led to ridership increases at more than 50 transit agencies. This information will be of particular use to transit managers and planners interested in better understanding various mechanisms that have playe...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 28: A Desk Guide for Inventory Managers in the Transit Industry provides the results of TCRP Project E-3, "Desk Guide for Inventory Managers in the Transit Industry." The digest summarizes inventory control techniques appropriate to the transit industry, decision-making techniques, and benchmark references

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 27: International Transit Studies Program, Report on the Spring 1997 Mission: Public-Private Partnerships and Innovative Transit Technologies in Scandinavia summarizes the sixth mission performed under TCRP Project J-3, "International Transit Studies Program " The report includes information on the cities visited, lessons le...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 26: Rail Corrugation Mitigation in Transit identifies and classifies various types of transit rail corrugation and offers possible mitigation measures for each. The body of the digest summarizes the work performed and the resultant findings. More detailed information is provided in the appendixes.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 25: Technology Assessment of Refueling-Connection Devices for CNG, LNG, and Propane provides an assessment of current and emerging refueling-connection-device (nozzle) technologies (both domestic and international) for fueling alternative fuel vehicles (AFVs). The nozzle technologies discussed in this digest are those used f...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 24: Creating a New Future for Public Transportation: TCRP's Strategic Road Map summarizes the findings from TCRP Project J-8A, "New Paradigms for Public Transportation: A Scoping Study. "A future-search conference was held May 12-14, 1997, to identify research that could lead to new paradigms for a better future for public t...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 23: Coordinating Public Transportation with Other Federal Programs identifies and briefly describes federal programs that can fund passenger transportation for various purposes. Opportunities for coordination of services provided under these programs are discussed and highlighted by case studies of successful coordination. T...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 22: International Transit Studies Program, Report on the 1996 Missions: Urban and Regional Bus Operations in Smaller European Cities summarizes the fourth and fifth missions performed under TCRP Project J-3, "International Transit Studies Program. " The digest includes information on the cities visited, lessons learned, and ...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 21: Consequences of the Development of the Interstate Highway System for Transit presents the literature review for TCRP Project H-13A, "Consequences of the Development of the Interstate Highway System." The aim of this project is to determine the effects of the interstate highway system on urban and suburban areas, focusing...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 20: International Transit Studies Program summarizes the first three missions performed under TCRP Project J-3, "International Transit Studies Program. "Included in this digest are information on the cities visited, summaries of topics investigated, and discussions of policies and practices that could be used in the United S...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 19: Wheel/Rail Noise Mitigation describes tools developed to assist engineers responsible for wheel/rail noise control in the design, construction, and operation of rail transit systems.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 18: Public Agency Guidance on Employer-Based TDM Programs describes information collected and guidance developed for use by public agencies and employers interested in implementing employer-based transportation demand management (TDM) strategies to reduce employee reliance on single-occupant vehicles.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 17: Improved Methods for Increasing Wheel/Rail Adhesion in the Presence of Natural Contaminants reviews methods for improving wheel/rail adhesion where railhead contamination by moisture, ice, grease, and leaves and other vegetation has adversely affected operation.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 16: Multipurpose Fare Media: Developments and Issues presents the interim findings of TCRP Project A-14, "Potential of Multipurpose Fare Media." Included in the digest are (1) a summary of the emerging developments, (2) a discussion of key issues and concerns, and (3) a technical appendix presenting the results of a survey o...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 15: Derailment of Transit Vehicles in Special Trackwork reviews procedures for reducing derailment incidents in special trackwork.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 14: Coordinated Intermodal Transportation Pricing and Funding Strategies provides a summary of TCRP Project H-6, "Transit Fare Pricing Strategy in Regional Intermodal Transportation Systems." Included in the digest are (1) a summary of the key issues and study findings, and (2) several technical appendixes providing key back...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 13: Leveraging Information for Better Transit Maintenance summarizes the findings of TCRP Project E-1, "Innovative Maintenance Procedures for Transit Buses."

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 12: Transit Risk Manager: Risk Management Software for Bus Transit Systems describes a new software product developed under TCRP Project G-3, "Tools for Transit Risk-Exposure Identification and Treatment for Bus Transit Systems. This software product, called Transit Risk Manager, is a PC-based, user-friendly, menu-driven, Wi...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 11: Guidelines for the Consistent Collection, Categorization, and Dissemination of Bus Transit Loss Data provides the results of Task 6 of TCRP Project G-3, "Tools for Transit Risk-Exposure Identification and Treatment for Bus Systems." The digest offers guidelines for the consistent collection, categorization, and dissemina...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 10: Integrating Americans with Disabilities Act Paratransit Services and Health and Human Services Transportation explains the impact of the implementation of ADA paratransit requirements on public and human services transportation, presents an overview of federal and state coordination activities, and summarizes selected AD...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 9: Responding to Vandalism of Transit Bus and Rail Vehicle Passenger Windows summarizes of findings from TCRP Project C-4, "Enhancement of Vehicle Window Glazing for Vandal Resistance and Durabilit.," Included in the digest are brief descriptions of current and emerging methods available to address the passenger window vanda...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 8: Synthesis of Information Related to Transit Problems describes 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.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 7: An Evaluation of the Relationships Between Transit and Urban Form summarizes the results of Phase I of TCRP Project H-I, "An Evaluation of the Relationships Between Transit and Urban Form." The objectives of this phase were to 1) review the existing literature on transit and urban form relations, 2) develop a framework to...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 6: Research Agenda for Increasing Transit Ridership summarizes TCRP Project H-5, "National Workshop to Develop a Research Agenda for Increasing U.S. Transit Ridership." The objective of the workshop was to develop problem statements for research on increasing transit ridership.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 5: Electronic On-Vehicle Passenger Information Displays (Visual and Audible) provides the interim results of TCRP Project A-4, "Electronic On-Vehicle Passenger Information Displays (Visual and Audible)." The project explores ways in which transit agencies and transit users can benefit from on-board audio and visual display t...

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 4: Transit Ridership Initiative identifies and reports on transit ridership success stories and identifies research needs to increase U.S. transit ridership.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 3: Total Quality Management in Public Transportation presents research on Total Quality Management (TQM) in the private and public sectors and in the U.S. public transportation industry.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 2: Synthesis of Information Related to Transit Problems describes the new Transit Cooperative Research Program.

TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 1: Transit Operations for Individuals with Disabilities provide information on available options and enhancements that will allow transit providers to improve the effectiveness and efficiency of services to persons with disabilities.