RTD COMMUTER RAIL DESIGN CRITERIA
RTDCOMMUTER RAILDESIGN CRITERIAPrepared by theEngineering DivisionRegional Transportation District1560 BroadwayDenver, CO 80202September 2007REVISION 01 - APRIL 2009
Regional Transportation District1560 Broadway, Suite 700Denver, CO 80202303·299·6990RTD-Denver.ComApril 20, 2009The RTD Commuter Rail Design Criteria Manual includes general guidelines and specificcriteria to be used in the planning, design and construction of Commuter Rail (CR) corridorswithin the Regional Transportation District (RTD). The RTD Commuter Rail Design CriteriaManual complies with safety and security requirements and is compatible with the intendedfuture systems that RTD will construct. The Manual references and requires the use of the mostcurrent accepted industry practices and applicable codes.The CR Criteria have been prepared to interface with RTD's light rail and bus systems, formingan integrated public transportation network that addresses the transportation needs of the publicwithin the District. This Manual establishes guidelines, criteria and standards to be used in theplanning, design and construction process. Any deviations from these accepted criteria must beapproved by RTD Engineering or the RTD Executive Safety and Security Committee, asspecified.Coordination with local agencies and jurisdictions is required to determine and approve fireprotection, life safety and security measures that will be implemented as part of the planning,design and construction of the CR system. Conflicting information or directives within thecriteria set forth in this Manual shall be brought to the attention of RTD and will be addressedand resolved between RTD and the local agencies and/or jurisdictions.The initial version of the RTD CR Design Criteria Manual was published in September 2007.This version represents the first revision to the Manual. Any updates or modifications to theManual shall take precedence over previous versions or sections of these criteria.Approved by:Richard F. ClarkeActing Assistant General ManagerPia ning & Development/EngineeringPranayarestha, P.E.Manage, Systems EngineeringDavid A. Gen vaAssistant General ManagerSafety, Security and Facilities Cal ShanksterActing Assistant General ManagerRail Operations
TABLE OF CONTENTSTITLESECTIONGeneral Information . 1Operations Plan . 2Civil Engineering . 3Track Geometry and Trackwork . 4Station Design . 5Bridges and Structures . 6Communications and Central Control . 7Signal System . 8Traction Electrification System . 9Corrosion Control . 10Operations Facility . 11System-Wide Electrical . 12Commuter Rail Vehicles . 13System Safety and System Security . 14RTD Design Guidelines & CriteriaCommuter Rail Design CriteriaTable of ContentsApril 2009Page 1 of 1
TABLE OF CONTENTSSECTION 1 – GENERAL INFORMATION1.11.21.31.41.51.61.71.8PURPOSE . 2SCOPE . 2PROCEDURES . 3DESIGN CODES AND MANUALS . 3CLIMATIC CONDITIONS FOR SYSTEMS DESIGN . 5CORRIDOR CONVENTION . 7ACRONYMS AND ABBREVIATIONS . 7UNITS OF MEASURE . 12RTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 1 of 14
SECTION 1 - GENERAL INFORMATION1.1PURPOSEThis manual establishes basic criteria to be used in the design of the RegionalTransportation District's (RTD) Commuter Rail (CR) system. In addition, draftingstandards, directive or sample drawings and management procedures have beenprepared to standardize and guide the design activities and the preparation ofcontract documents. See separate design criteria for Light Rail Transit.Design is to be directed toward minimum feasible costs for design, construction,capital facilities and operation; minimum energy consumption and minimumdisruption of local businesses and communities. It should be consistent with systemreliability, passenger comfort, mode of operation, type of Commuter Rail vehicles tobe used and maintained. Safety for passengers, workers and the public is of primaryimportance.1.2SCOPEThe Design Criteria will take precedence over all other standards referred to hereinexcept those fixed by legislation. Where Commuter Rail operates on railroadtrackage, or shares right-of-way with freight rail trackage, the design requirementsand concepts of the dominant railroad (BNSF or Union Pacific Railroad (UPRR))shall be used if more stringent than standards presented in this design criteriamanual. This will be defined and finalized as the FasTracks Program proceeds on acorridor-by-corridor basis.Specific attention should be given to the Americans with Disabilities Act (ADA), theADA Accessibility Guidelines for Building and Facilities (ADAAG), the ADAAccessibility Guidelines for Transportation Vehicles and to any succeedingmodifications that may be issued. The applicability of those documents is noted inseveral sections of this manual where it appears to be particularly appropriate.However, the regulations must be adhered to in all areas, whether or not mentionedherein.The Design Criteria in this manual relates to the following elements of the CommuterRail system: OperationsCivil and Structural EngineeringTrack Geometry and TrackworkUtilitiesLandscapingStationsOperations FacilitySignal SystemCommunications and Central ControlRTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 2 of 14
1.3Fare Collection EquipmentCommuter Rail VehiclesSystem Safety & System SecurityPROCEDURESDesign Engineers shall prepare drawings and technical specifications for eachcontract of the project in accordance with their design contract (if applicable) and thefollowing RTD documents: Design Criteria ManualsCADD StandardsContract RequirementsAll other applicable requirements including codes, regulatory standards andenvironmental impact statementsDeviations may be made within the framework of the Design Criteria to meet therequirements of a particular issue. However, any deviation, discrepancy or unusualsolution must be approved by RTD before it can be included in the design. It is theresponsibility of the Design Engineer to identify, explain and justify any deviationfrom the established criteria and to secure the necessary approvals from RTD. Anyvariation from these Design Criteria must be submitted to and approved by RTD’sExecutive Safety and Security Committee.All proposed deviations to these criteria shall be approved by RTD in writing.1.4DESIGN CODES AND MANUALSIn addition to this Design Criteria Manual, the Design Engineer must comply with allother applicable engineering codes and standards, including those of the variousFederal, State, and local jurisdictions.If codes and/or manuals are specified herein for the design of an element of the RTDCRT system, then the most recent edition(s) shall be used. Responsibility for designremains with the Design Engineer in accordance with the terms and conditions oftheir contract with RTD.Where design codes conflict with each other, the Design Engineer shall notify RTD inwriting and recommend a solution. The Design Engineer shall also investigate thosecodes and manuals that have precedence.Specific codes and standards include, but are not limited to, the following: Americans with Disabilities Act (ADA)Americans with Disabilities Act Accessibility Guidelines for Buildings andFacilities (ADAAG)Americans with Disabilities Act Accessibility Guidelines for TransportationVehiclesRTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 3 of 14
Colorado Department of Transportation (CDOT) - Standard Specifications forRoad and Bridge ConstructionCDOT - Standard Plans (M&S Standards)CDOT - Highway Design ManualCDOT – Drainage Design ManualCity and County of Denver - Rules for Street StandardsCity and County of Denver - Standard Construction SpecificationsFHWA - Manual on Uniform Traffic Control Devices for Streets and Highways(MUTCD)Colorado Public Utilities Commission (PUC)RTD - Light Rail Design CriteriaRTD - Design Guidelines and Criteria for Bus Transit FacilitiesRTD - Standard Plans for Bus & Light Rail Transit Facilities2006 International Building Code2006 International Fire CodeInternational Energy Conservation Code 2009 (IECC)American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications for Highway BridgesAASHTO - Standard Specifications for Structural Supports for Highway Signs,Luminaries, and Traffic SignalsAmerican Railway Engineering and Maintenance Association (AREMA)American Institute of Steel Construction (AISC)American Welding Society (AWS)American Concrete Institute (ACI)American Society for the Testing of Materials (ASTM)National Bureau of StandardsNational Electric Code (NEC)National Electric Safety Code (NESC)American National Standards Institute (ANSI)National Fire Protection Association (NFPA) including NFPA 130 and 101Burlington Northern Santa Fe (BNSF) Design StandardsUnion Pacific Railroad (UPRR) Design StandardsNational Railroad Passenger Corporation (Amtrak) Design StandardsLocal jurisdictional codes, requirements and ordinances, as applicableIndividual sections of these criteria may also define additional code requirements.RTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 4 of 14
1.5CLIMATIC CONDITIONS FOR SYSTEMS DESIGNThe Denver metropolitan area, within which RTD operates, is situated at the foot ofthe eastern slope of the Rocky Mountains in central Colorado. The area has a semiarid climate that is somewhat characteristic of the High Plains, but is modified by theRocky Mountains to the west. Because of this, Denver lies in a belt where there is afairly rapid change in climate from the foothills to the plains. This change is largelycaused by the increase in elevation as you travel west to the foothills. Denver has anelevation of 5,280 feet.The average annual temperature is about 50 F at this elevation, though this varies afew degrees as elevation changes. The wide average range in daily temperature of25 to 30 F in the Denver metropolitan area and a wide average range in annualtemperature are typical for the High Plains. Variations in temperature are wide fromday to day; extremely hot weather in summer and extremely cold weather in thewinter normally do not last long and are followed by much more moderatetemperatures.System equipment including vehicles, electrification power and distribution system,signal system and fare collection/validation equipment along with trackwork, stationsand other civil features shall be capable of maintaining operation within the followingconditions:TABLE 1A – CLIMATIC CONDITIONSAmbient TemperatureRelative HumidityMaximum Rainfall in 24 HoursMaximum Snowfall in 24 HoursMaximum Wind SpeedAverage ElevationRTD Design Guidelines & CriteriaCommuter Rail Design Criteria-30 F to 110 F8 to 100%1.88 inches10.1 inches54 mph5,280 FeetSection 1 – General InformationApril 2009Page 5 of 14
TABLE 1B – TEMPERATURE AND PRECIPITATIONMONTHTEMPERATUREPRECIPITATION2 YEARS IN 10 WILL2 YEARS IN 10HAVE AT LEAST 4WILL HAVEDAYS WITHAVG NO.DAYSMINMAXAVGWITHTEMPTEMPTOTALAVERAGE AVERAG EQUALEQUALLESS MORE SNOWE DAILYDAILYORTHAN THAN COVERORMINIMUMMAXIMUMHIGHER LOWERTHANTHAN F F F 059.218.341******Average annual highest temperatureAverage annual lowest temperatureLess than one-half dayData for long periods indicate that the average annual precipitation ranges from 13.5to 14.5 inches, with the highest precipitation occurring at the western edge of themetropolitan area. Particularly in summer and spring, precipitation may vary fromyear to year and in different areas in the same year. Precipitation in the winter ismore in the western part of the Denver metropolitan area than it is in other parts.These differences are small but consistent from October to May. The annual snowfallis about 59 inches. The eastern part of the metropolitan area, however, usuallyreceives more rainfall in summer than the west, but local rainfall varies widely fromyear to year.RTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 6 of 14
The relative humidity averages 39% during the day and 62% at night, but theseaverages are slightly higher in winter than in summer. In an average year, thepercentage of sunshine is about 69%.Hailstorms cause some local damage almost every year. The hail usually falls instrips 1 mile wide and 6 miles long. These storms are more common in the easternpart of the Denver metropolitan area than the western part and they generally occurfrom about May 15 to September 1 but are most common in June and July.Requirements for climatic conditions defined in other sections of these DesignCriteria take precedence.1.6CORRIDOR CONVENTIONSouthbound (inbound) is always towards Denver Union Station (DUS) andNorthbound (outbound) is always away from DUS.Tracks are referenced by number. The track toward the bottom of the drawing is thenorthbound track and it is numbered track 1. The track toward the top of the drawingis the southbound track and it is numbered track 2. Numbering for additional tracksshall be submitted to RTD for approval.1.7ACRONYMS AND ABBREVIATIONSThe following acronyms and abbreviations appear in this document. They aredefined as indicated:AARAASHTOACACIACOEADAADAAGAssociation of American RailroadsAmerican Association of State Highways and Transportation OfficialsAlternating CurrentAmerican Concrete InstituteArmy Corps of EngineersAmericans with Disabilities ActAmericans with Disabilities Act Accessibility Guidelines for Buildingsand FacilitiesAFCAutomatic Fare CollectionAFIAFOAir Filter InstituteAudio Frequency OverlayAISCAmerican Institute of Steel ConstructionAISIAmerican Iron and Steel InstituteAMCAAir Moving and Conditioning Association, Inc.ANSIAmerican National Standard InstituteAPTAAmerican Public Transportation AssociationAREMAAmerican Railway Engineering and Maintenance AssociationRTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 7 of 14
ARIAir Conditioning and Refrigeration InstituteASAAcoustical Society of AmericaASCIIAmerican Standard Code for Information InterchangeASHRAEAmerican Society of Heating, Refrigeration and Air ConditioningEngineersASICApplication Specific Integrated CircuitASMEAmerican Society of Mechanical EngineersASTMAmerican Society for Testing and MaterialsATPAutomatic Train ProtectionATSAutomatic Train StopAW0Empty vehicle operating weightAW1Fully seated passenger load and one operator, plus AW0AW2Standees at four passengers per square meter of suitable standingspace plus AW1 (Structural mean fatigue load, Propulsionperformance load)AW3Standees at six passengers per square meter of suitable standingspace plus AW1 (Braking performance load)AW4Standees at eight passengers per square meter of suitable standingspace plus AW1 (Structural design load, not contemplated for revenueoperation)AWGAmerican Wire GaugeAWSAmerican Welding SocietyBLSBureau of Labor StatisticsBNSFBurlington Northern Santa FeCCDCity and County of DenverCCTVClosed Circuit TelevisionCDOTColorado Department of TransportationCDPHEColorado Department of Public Health and EnvironmentCFRCode of Federal RegulationsCPMCritical Path MethodCPTEDCrime Prevention through Environmental DesignCRBColumbia River BasaltCRCommuter RailCTSCable Transmission SystemDBDry BulbRTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 8 of 14
DBEDisadvantaged Business EnterpriseDCDirect CurrentDFDirect FixationDINDeutsche Industry Norm (German Industrial Standard)DOGAMIDepartment of Geology and Mineral IndustriesDWGDrawingECSEnvironmental Control SystemECUElectronic Control UnitEIAElectronic Industries AssociationEMCElectromagnetic CompatibilityEMIElectromagnetic InterferenceFAAFederal Aviation AdministrationFACPFire Alarm Control PanelFCCFederal Communications CommissionFOBFahrenheit Dry BulbFHWAFederal Highway AdministrationFEAFinite Elements AnalysisFMPFire Management PlanFRAFederal Railroad AdministrationFTAFederal Transit AdministrationFWBFahrenheit Wet BulbGSAGeneral Services AdministrationHPCUHydraulic Pressure Control UnitHVACHeating, Ventilating and Air ConditioningIBCInternational Building CodeICEAInsulated Cable Engineers AssociationIECInternational Electro-technical CommitteeIECCInternational Energy Conservation CodeIEEEInstitute of Electrical and Electronic EngineersIESIlluminating Engineering SocietyISOInternational Organization for StandardsJIGJoint Industrial CouncilLAHTLow Alloy High Tensile Strength (Steel)RTD Design Guidelines & CriteriaCommuter Rail Design CriteriaSection 1 – General InformationApril 2009Page 9 of 14
LEDLight Emitting DiodeLOSLevel of ServiceLRTLight Rail TransitLRVLight Rail VehicleLVPSLow Voltage Power SupplyMBMaximum BrakeMCEMaximum Credible EarthquakeMDBFMean Distance Between FailureMILMilitary SpecificationMISManagement Information SystemMOVMetal Oxide VaristorMOWMaintenance-of-WayMSBMaximum Service BrakeMSSManufacturers Standardization Society of the Valve and FittingIndustryMTTRMean Time to RepairNBSNational Bureau of StandardsNECNational Electrical CodeNEMANational Electrical Manufacturers AssociationNESCNational Electrical Safety CodeNETANational Electrical Testing AssociationNFPANational Fire Protection AssociationNIOSHNational Institute for Occupational Safety and HealthOCSOverhead Contact SystemOSIOpen System InterconnectOSHAOccupational Safety and Health AdministrationPAPublic AnnouncementPABXPrivate Automatic Branch ExchangePEPreliminary EngineeringPHAPreliminary Hazard AnalysisPIVPeak Inverse VoltagePUCPublic Utilities CommissionRMSRoot Mean SquareRTD Design Guidelines & CriteriaCommuter Rail Design Criter
The Design Criteria will take precedence over all other standards referred to herein except those fixed by legislation. Where Commuter Rail operates on railroad trackage, or shares right-of-way with freight rail trackage, the design requirements and concepts of the dominant railroad (BNSF or Union Pacific Railroad (UPRR))
systems, including commuter rail, light and heavy rail, bus transit, streetcars and ferries. Recent commuter rail studies . As Wisconsin communities have considered including commuter rail in their transportation systems, several commuter rail studies have been completed. This section provides a brief review of these studies.File Size: 599KB
The previous equations define the RTD resistance as a function of its temperature, R. RTD (t). However, to implement an RTD sensor interfacing circuit, the RTD temperature must be deter-mined, instead, as a function of its resistance, T. RTD (r). This may be less straightforward, given the
The RTD Series Precision RTD (Resistance Temperature Detector) Simulator provides a very broad-range of absolute resistance values that replace RTD’s,thermocouples. Thermocouples present a re-sistance that depends on the temperature. The RTD simulator effectively replaces an RTD to test, analy
New Mexico Rail Runner Express 1,000 Northstar Commuter Rail 853 Regional Transportation District Commuter Rail 1,000 Southeastern Pennsylvania Transportation Authority 853 Sounder Commuter Rail 853 Sonoma-Marin Area Rail Transit 1,000 Missed End-of-2016 Hardware Installation Miles
Table 2 lists the coefficients used in this equation for each of the TCR values that the [c]FP-RTD-124 supports. If you have a nonstandard RTD that does not match one of these linearization curves, measure the resistance with the [c]FP-RTD-124 and convert the resistance to temperature in the manner suggested by t
TX92 RTD Transmitter. The TX92 Two-Wire RTD Transmitter will produce a standard 4-20 mA output signal proportional to that produced by its RTD input temperature sensor. Transmission of the proportional current output may be accomplished by using copper wires. The TX92 RTD Transmitter accepts 100 Ohm, Plat
About the Excel RTD app The Excel RTD app lets you do two things: Put real-time data into Excel using only Excel's RTD() function. No macros; no . MT4/5: the app will report all the symbols which are included in the MT4/5 market watch . 2.2 Excel formula Once the RTD app is running, you can use the following formula in Excel to insert a .
Assessment commentary and marks Commentary on BEC Higher: Cyrielle and Christopher UCLES 2012. This material may be photocopied (without alteration) and .
