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61 In all the following figures, STA stands for Surveyed Transit Agency. Graphical Results of Survey A P P E N D I X E Figure E-1. Size of each transit system. Figure E-2. Distribution of transit systemâs size.
62 Third Rail Insulator Failures: Current State of the Practice Figure E-3. Rate of observed insulator failures per year among all the agencies. Figure E-4. Rate of occurrence of fire incidents in different types of insulators.
Graphical Results of Survey 63 Figure E-5. Rate of different ranges of clearance spaces around insulators in all agencies. Figure E-6. Rate of annual delay time due to insulator failure among all agencies.
64 Third Rail Insulator Failures: Current State of the Practice Figure E-7. Range of annual wasted passengers in each agency. Figure E-8. Range of maintenance costs per insulator failure in each agency.
Graphical Results of Survey 65 Figure E-9. Access limiting appliances implementation in each transit system. ImplementedNot Implemented Figure E-10. Percent comparison of access limiting implementation among transit systems.
66 Third Rail Insulator Failures: Current State of the Practice Figure E-11. Average costs of insulators of different materials in each agency. Figure E-12. Frequency of implementation of predictive/diagnostic methods.
Graphical Results of Survey 67 Figure E-13. Comparison of average number of annual failures of newer/replaced track systems with not-renewed track systems in each agency. Figure E-14. Time interval between two walkway cleaning activities in each agency.
Abbreviations and acronyms used without definitions in TRB publications: A4A Airlines for America AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACIâNA Airports Council InternationalâNorth America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FAST Fixing Americaâs Surface Transportation Act (2015) FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration HMCRP Hazardous Materials Cooperative Research Program IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers MAP-21 Moving Ahead for Progress in the 21st Century Act (2012) NASA National Aeronautics and Space Administration NASAO National Association of State Aviation Officials NCFRP National Cooperative Freight Research Program NCHRP National Cooperative Highway Research Program NHTSA National Highway Traffic Safety Administration NTSB National Transportation Safety Board PHMSA Pipeline and Hazardous Materials Safety Administration RITA Research and Innovative Technology Administration SAE Society of Automotive Engineers SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005) TCRP Transit Cooperative Research Program TDC Transit Development Corporation TEA-21 Transportation Equity Act for the 21st Century (1998) TRB Transportation Research Board TSA Transportation Security Administration U.S. DOT United States Department of Transportation
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