Silverliner-VI-RFP-Technical-Specifications.pdf

SOUTHEASTERN PENNSYLVANIA

TRANSPORTATION AUTHORITY

SILVERLINER-VI RAILCAR PROCUREMENT

TECHNICAL SPECIFICATION

SEPTA New Rail Vehicles – September 2025

Table of Content

1 General Topics and Definition 2 Design and Performance Criteria 3 Carbody 4 Coupler and Drawbar 5 Operator's Cab 6 Passenger Doors

7 HVAC

8 Lighting 9 Auxiliary Power 10 Propulsion and High Voltage System 11 Trucks 12 Friction Brake 13 Communications 14 Interior and Exterior Appointments 15 Test Program 16 Materials and Workmanship 17 Network and Trainline Control 18 Monitoring and Diagnostics 19 Software Engineering 20 Automatic Train Control – Positive Train Control 21 Reliability, Availability, Maintainability 22 Quality Assurance 23 System Safety and Security 24 Cybersecurity 25 Program Management and Commissioning 26 Manuals and Training 27 Special Tools and Test Equipment 28 Test and Inspection Vehicle

Appendices

Appendix I Amtrak Clearance Diagram Appendix II Jacking pad locations Appendix III Track Charts Appendix IV Hoist Drawings Appendix V Track Profiles Appendix VI Timetables Appendix VII Style Guide Appendix VIII Disaggregated APC Schema

Section 1, General Topics and Definitions

SEPTA Silverliner VI Railcars i RFP Technical Specifications September 2025

Table of Contents

1.1 Scope

1.2 General Requirements

1.3 Specifications

1.3.1 Introduction

1.3.2 Organization

1.3.3 Language

1.3.4 Contract Deliverables

1.3.5 Alternate Design Proposals

1.4 Access to Contractor Facilities

1.5 Materials and Equipment

1.6 Industry Standards and Regulations

1.7 Americans With Disabilities Act (ADA)

1.8 Secure Equipment Act of 2021

1.9 System of Units

1.10 English Language

1.11 Definitions

1.12 Acronyms and Abbreviations

1.13 Abbreviations for Units of Measure

1.14 Contract Deliverable Requirements List (CDRL)

1.15 Referenced Standards

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1.1 Scope

A. This Section includes requirements that apply to every section in the Specifications.

1.2 General Requirements

A. The cars shall be modern commuter rail vehicles designed to be safe, reliable, and maintainable.

B. The Contractor shall have the following responsibilities:

1. Design, manufacture, test, and deliver the products as described by the Technical Specifications (“the Specifications”). Deviations from these requirements are permitted only with specific written Approval of SEPTA, as specified in the Contract Documents.

2. Design and integrate car subsystems such that specified requirements are achieved without conflict or error within or between onboard subsystems and between car subsystems and wayside systems.

3. Flow specified requirements down to all subcontractors and subsuppliers, regardless of their tier, and ensure that designers, subcontractors, suppliers, and subsuppliers are informed of specified requirements, and that appropriate engineering management tools are used to ensure that coordination and communication occurs between the designers of interrelated subsystems.

4. Ensure that SEPTA can communicate directly, in person and electronically, with the suppliers of all car subsystems that interface with SEPTA’s wayside infrastructure (such as cab signaling equipment). The Contractor shall be copied on such communication as it applied to the vehicles.

1.3 Specifications

1.3.1 Introduction

A. The Specifications define the functional, performance, and interface design requirements for the cars and Contract-required support systems, as well as processes to be followed during the term of this contract.

1.3.2 Organization

A. The Specifications are divided into sections according to technical discipline and traditional supplier arrangements.

1. The format is for convenience only and does not imply or suggest a preferred subsystem integration approach.

2. Explicit references may appear within sections linking requirements appearing in other sections. Such references shall, in no way, be assumed to limit the

SEPTA Silverliner VI Railcars 2 RFP Technical Specifications September 2025 range or applicability of the requirements in this document, whether referenced or not.

1.3.3 Language

A. The Specifications are written in imperative mood and streamlined form:

1. Imperative language is directed to the Contractor, although work may be carried out by a subcontractor or supplier under the Contractor’s direction. The words “shall be” are included by inference where a colon (:) is used within sentences or phrases.

2. Examples:

a. “Perform type tests at the manufacturer's facilities unless indicated otherwise in the Specifications,” means that Contractor is responsible for type tests being performed, whether by itself or by its subcontractor.

b. “Comply with the following:” means that Contractor shall incorporate the requirements listed after this statement into its design and manufacture of the car.

c. “Stress Analysis Report: Submit minimum 60 days before starting manufacture of carbody structural parts” means that Contractor shall submit the report within the time indicated.

d. “Life expectancy: Minimum 100,000 hours” means that the life expectancy of the component shall be minimum 100,000 hours.

1.3.4 Contract Deliverables

A. Comply with the following:

1. The Specifications require submittal of the following Contract deliverables for review by SEPTA to verify compliance with specified requirements, and for after-delivery support of the cars:

a. Contract Deliverable Requirements List items (CDRLs), which include drawings, documents, analyses, technical data, test procedures and results, manuals, schedules, and similar. These are listed at the end of each section under the heading Contract Deliverable Requirements List.

b. Design review packages.

c. Samples.

d. Mock-ups.

2. Unless otherwise noted in the Contract Documents, each item specified for submittal shall be both reviewed and Approved by SEPTA, whether this is specifically stated or not.

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3. SEPTA reserves the right to request additional drawings, documents, analyses, technical data, test procedures and results, or similar information, as required to clarify and amplify the intent of Contract deliverables submitted.

4. SEPTA disposition on items submitted for review or Approval will be one of the following:

a. Approved: As defined in Section 1.11, Definitions.

b. Approved As Noted: Approved as defined above, but contains Notes for open questions that cannot be resolved as part of design review and instead must be resolved at a later project stage (e.g., FAI, manuals, etc.)

c. Conditionally Approved: As defined in Section 1.11.

d. Disapproved: The Contractor shall revise and resubmit the document, drawing, or data for Approval before beginning that portion of the work.

e. Insufficient Information: The Contractor shall provide additional details or context and resubmit the document, drawing, or data for Approval before beginning that portion of the work. This resubmittal shall occur within 7 days unless otherwise Approved.

f. Information Only: The information was submitted to assist in review of a required submittal or to satisfy a request. Specific Approval and comment not required.

1.3.5 Alternate Design Proposals

A. The Specifications include statements allowing alternate designs, products, and standards to be proposed and submitted for Approval.

1. If the Contractor chooses to propose one of these alternate designs, products, or standards, it shall be submitted to SEPTA for review and Approval, whether this is stated or not, and is subject to Approval before it may be used.

2. The submittal package shall include a detailed comparison of the features, functions, and performance parameters for the specified design, product, or standard and for the proposed alternate.

1.4 Access to Contractor Facilities

A. SEPTA and its authorized representatives shall have the right to visit facilities of the Contractor and its subcontractors:

1. Visits are to assess progress, monitor work being performed, conduct QA/QC audits, determine readiness of materials and the subsupplier supply chain, conduct quality inspections, and witness testing.

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2. SEPTA and its authorized representatives shall have the right to photograph, at its expense, any or all phases of car or equipment construction, including subcontractor work.

3. SEPTA shall have the right to review documentation at the facilities of the Contractor or subcontractors. This shall include, at a minimum, certifications, inspection records, manufacturing documentation, and software documentation, even when such documentation is proprietary and will be placed in escrow.

1.5 Materials and Equipment

A. Name brands, specific equipment, or specific materials may be referenced in the Specifications:

1. Such equipment has been shown to be successful in previous applications, where correctly applied and integrated with other equipment; however, such references shall not be interpreted as pre-Approval of Contractor designs or applications.

2. The Contractor is responsible for the selection, application, and integration of equipment and materials as necessary to conform to the specified requirements.

B. Equipment provided under this Contract shall be new:

1. Rebuilt or refurbished equipment is prohibited.

2. New equipment damaged during performance of this Contract may be restored to new condition only where Approved in writing by SEPTA on a case-by-case basis, and restorations shall be performed by the original equipment manufacturer.

1.6 Industry Standards and Regulations

A. Comply with the following:

1. Where standards, codes, or reference books are referenced in the Specifications, use the most current version available at NTP, unless otherwise noted.

2. Laws, statutes, and regulations, whether specified in the Specifications or not, shall be enforced. It is the responsibility of the Contractor to deliver cars that comply with all applicable laws, statutes, and regulations enacted as of NTP.

3. References to laws, statutes, or regulations are included in the Specifications to aid the Contractor. Whether referenced or not, applicable federal, state, and local laws, statutes, and regulations shall be included in this Contract.

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4. International standards: SEPTA may consider Approval of requests to use an EN (European) or IEC (international) standard instead of a standard referenced in the Specifications, if the Contractor can demonstrate that compliance with such standard would yield equal performance under the conditions encountered in SEPTA’s operating environment, as Approved, and is equally stringent to (or more stringent than) the standard referenced in the Specifications. Alternative standards other than EN or IEC will not be considered.

1.7 Americans With Disabilities Act (ADA)

A. The Americans with Disabilities Act (ADA) prohibits discrimination on the basis of disability in the provision of transportation services by public and private entities:

1. The Department of Transportation (DOT) issues legally enforceable regulations to implement the transportation provisions of the ADA, codified in 49 CFR Parts 37 and 38, and compliance with these regulations is mandatory whether referenced in the Specifications or not.

2. Compliance with interpretations by the Federal Transit Administration (FTA) in Administrators Policy Letters is also mandatory.

B. References are furnished to these parts in the Specifications:

1. 49 CFR 38: Technical requirements for cars are primarily found in this part.

2. 36 CFR 1191, Appendix D: Adopted by DOT in 49 CFR 37, Appendix A, by reference with some modifications. In some cases, requirements from this part are applied to cars.

1.8 Secure Equipment Act of 2021

A. Compliance with the recently enacted Secure Equipment Act of 2021 and implementing regulations adopted by the Federal Communications Commission (FCC) is mandatory for all radio frequency telecommunications devices provided for this project. Use of listed communications equipment or services that the FCC determines pose an unacceptable risk to national security or the security and safety of U.S.

persons is prohibited.

1.9 System of Units

A. United States customary units are shown with International System of Units (SI) units following in parentheses. This format applies to the Specifications only; requirements for deliverables, on-car displays, PTUs, and all other required items are presented elsewhere in the Specifications.

B. Rounding: If a difference exists between U.S. customary units and SI units due to rounding or conversion error, U.S. customary units shall be primary.

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1.10 English Language

A. Communication with SEPTA and its authorized representatives shall be conducted in the English language only, including but not limited to meetings, correspondence, and other documents submitted to SEPTA and all Work Product produced under the Contract.

B. Contract deliverables and design review documentation shall be prepared in coordination with a native-English-speaking technical writer so that the information is presented in U.S. English, clearly and concisely written.

1.11 Definitions

A. The following terms may appear in this document. They are defined as indicated, whether capitalized or not:

A-Car: The odd-numbered car of a married pair that houses the Positive Train Control (PTC) apparatus.

Acceptance: The formal written acceptance by SEPTA that all work, or a specific portion thereof, under the Contract has been satisfactorily completed.

Acceptance, Conditional: Not fully accepted, but with a defined set of conditions identified for achieving acceptance.

Active Cab: The cab in which the control lock is set to Run, providing control of the train, normally the cab at the front of the train.

Adhesion, Percent: During rolling contact, the maximum value of the ratio between the longitudinal tangential force and the normal force at the wheel-rail interface.

Alignment, Horizontal: The horizontal location of a track as described by curves and tangents.

Anchorage: The attachment of the coupler, draft gear, and drawbar to the car underframe.

Approved: Approved in writing by SEPTA for use on the Silverliner VI cars, unless otherwise stated. Approval in no way relieves the Contractor of meeting all requirements of the Specifications. Approval may be qualified as pertaining to a particular stage of the procurement. Note that “Approved”, “Approved by SEPTA”, “SEPTA Approved”, “SEPTA Approval”, and similar constructions, regardless of capitalization, are synonymous terms.

Approval of Contract deliverables that contain deviations from, or violation of the Specifications does not constitute Approval of that deviation or violation.

Deviations shall be specifically submitted for Approval.

Approval is intended to mean that SEPTA is aware of the Contractor's intent and there are no objections to the apparent methods, procedures, designs, or

SEPTA Silverliner VI Railcars 7 RFP Technical Specifications September 2025 calculations expressed in the submitted drawings or documents. It does not imply that all calculations, dimensions, materials, components, or other details were checked and verified.

Approved Equal or Equivalent: An item, material, or method offered as a substitute for that specified, for which approval in writing has been obtained from SEPTA. The burden of proof that a substitute is, in fact, equal shall rest with the Contractor.

Automatic Train Control: The subsystem for automatically controlling train movement, enforcing train safety, and directing train operations.

Auxiliary Equipment: Any mechanism or structure, other than the carbody, traction motor, or propulsion equipment gearing that performs a function at some time during the operation of the car: e.g., heating and cooling subsystem, pumps, car door mechanism, air compressor or hydraulic power unit, car lighting, etc.

Availability: The probability that a car will be in operable condition and suitable for revenue service. Availability is defined as the ratio of the total number of cars available for revenue service (s) to the total number of cars in the reliability test fleet (f).

Availability = (s/f)

B-Car: The even-numbered car of a married pair.

Blending: In braking, a simultaneous application of dynamic and friction brakes with the effort of friction brake supplementing, as required, the electrical braking to achieve the required total brake effort.

Body Roll: The angle in degrees, from the normal to the top-of-rail height plane to the body centerline as the car sways from side to side during normal running at any speed on level tangent track.

Brake Rack: A car set of friction brake equipment including air compressor; brake calipers; air reservoirs; control valves; chokes; correct piping connections and volumes to evaluate dynamic system behavior; and the associated electrical and electronic controls and interfaces, with relevant pressure and force measurement points built in.

Braking, Dynamic: Electrical braking in which the power generated by the traction motors, when driven as generators, is being dissipated by resistor banks on the car and is providing retardation effort.

Braking Effort: Retarding force developed by the propulsion subsystem, braking subsystem, or a combination of both subsystems.

Braking, Electrical: Braking in which the power generated by the traction motors, when driven as generators, is either dynamic or regenerative.

SEPTA Silverliner VI Railcars 8 RFP Technical Specifications September 2025

Braking, Emergency: An irretrievable braking effort to fully stop a car at a higher retardation rate than is obtained with a full service brake application.

Braking, Full Service: The normal maximum braking effort employed to stop a car in the absence of an emergency stop signal.

Braking, Regenerative: Electric braking where the power generated by the traction motor, when driven as a generator, is conditioned and returned to the DC bus.

Business Day: Monday through Friday except United States public holidays.

Car: One unit of a train, whose configuration and performance are described by the Specifications, not designed for independent operation but to be semi-permanently coupled to another car to create a married pair.

Catenary: Overhead power supply wire.

Coast: The mode of operation of car or train in which propulsion (positive traction) and braking are inactive.

Component: Any individual assembly, plug-in module, or element that is designed to perform a particular function relating to the operation of a subsystem such as a traction motor, gear box, door control panel, or friction brake control unit. For the purpose of reliability testing, a component or subsystem shall be considered as a component of a larger system which may require costly repairs to ensure functionality of the system or which, if inoperative, will render the car unusable.

Conditionally Approved: Approved, as defined above, with the condition that open comments shall be addressed prior to Final Approval.

Conductor: Crew person responsible for passengers (e.g. ticketing) who also is main operator of doors.

Console: The control panel located in the cab directly in front of the Operator's seat.

Contract: The written agreements executed by SEPTA and the Contractor, covering the performance of the Work and furnishing of labor, materials, equipment, and tools, including work incidental to the procurement.

Contract Deliverable Requirements List (CDRL): A matrix listing data (such as drawings, catalogs, reports, notices, and samples), services, and equipment that the Contract specifies shall be provided by the Contractor. The matrix also indicates when and how often submittals and resubmittals are required.

Contract Specifications: Documents issued by SEPTA that include the Request for Proposals, Proposal Forms, General Provisions, Terms and Conditions, Technical Specifications, and other forms and exhibits.

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Contractor: The person or persons, firm, partnership, corporation, or any combination thereof, which, as an independent Contractor, has entered into a Contract with SEPTA.

Converter: A power conversion system that can convert AC voltage to DC voltage, DC voltage to DC voltage, AC voltage to AC voltage, or DC voltage to AC voltage. Some converters are bidirectional (AC to DC and DC to AC) and are sometimes called 4Q (or four quadrant) Converters. The traction line converter is an example of a 4Q converter.

Coupler: A device for mechanically coupling cars together. This term is also applied to connectors, as in "electrical coupler" and "pneumatic coupler."

Days: Unless otherwise designated, the word "days" means Calendar Days.

Deadman Feature: A device that causes a brake application in the event that inattention or disability of a train operator is detected.

Defect: Malfunction or failure in the manufacture or design of any component or subsystem that causes a car to cease operating or operate in a degraded mode.

Delay, Train: An incident causing a revenue train to be offloaded, or a greater than or equal to 6-minute delay to service, or a lost trip.

Design Life: The period of time for which the car is intended to be safely and reliably usable for its original purpose.

Disapproved: The Contractor shall revise and resubmit the document, drawing, or data for Approval before beginning that portion of the work. The Contractor shall consider issues of overall system design, as appropriate, when resubmitting the document, drawing, or data, instead of merely answering the comments in SEPTA’s reply.

Draft Gear: The energy-absorbing mechanism that attaches the coupler to the anchorage.

Dwell: The period of time measured from the instant a train stops at a station until the instant it resumes moving.

Engineer: The individual onboard who occupies the active cab and is responsible for train operation. Also referred to as the “Operator”.

Existing Car: As used throughout the Specifications, "existing cars" serves to identify the Silverliner V and Silverliner IV cars.

F-End: The end of either an A-car or a B-car at which the cab is located.

Fail-Safe: Equipment configurations that are implemented in hardware where each component has a known set of predictable failure modes that may be individually analyzed for their effect on equipment performance and function. Any failure or set

SEPTA Silverliner VI Railcars 10 RFP Technical Specifications September 2025 of failures resulting from a single causative event must cause the equipment to revert to a safe state that is self-annunciating.

Failure: Any malfunction that requires unscheduled equipment maintenance action, repair, or replacement.

Failure, Chargeable: A chargeable failure of an item is a failure that results in a loss of function of that item, which requires maintenance, repair, or replacement of a car component, including:

A fault of an item while operating within its design and environmental specification limits.

Faults caused by improper operation, maintenance, or testing of the item as a result of Contractor-supplied documentation.

Item degradation discovered during the recommended preventive maintenance interval that causes the loss of function or near loss of function of that item (excluding consumable items). Note: Due to the subjective nature of classifying such instances, upon the Contractor's request, the discrepant item(s) shall be retained for review on SEPTA's property for a period not to exceed 14 days.

Consumable items requiring replacement for reasons other than normal car wear/aging.

Loss of function resulting from the required resetting of circuit breakers, or similar re-initialization of subsystems, including the restarting of subsystems incorporating software.

Failures caused by software.

A failure caused by human actions as a result of inadequate or improper Contractor documentation, training, or subsystem indication.

Failure, Non-Chargeable: A failure or condition of an item due to the following:

A failure caused by a specifically identified failure in other equipment.

A failure caused by human error, except where due to inadequate or improper Contractor documentation.

A failure caused by SEPTA personnel not complying with Contractor's documentation that has been accepted and approved by SEPTA.

A failure caused by accidents not associated with the normal operation of the item, such as collision or striking a foreign object on the right-of-way.

A failure caused by operating the item outside of design or environmental specification limits.

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Failure of consumable items requiring replacement during specified preventive maintenance, or which should have been replaced during a previously scheduled preventive maintenance interval and were not.

Failures per Million Miles (FPMM): The FPMM of an item is the ratio of the total number of chargeable failures to the total mileage, in millions, of the Test Fleet.

Failure, No Fault Found (NFF): In complex systems, the occurrence of repeated transient failures is evidence of subsystems that are not fully integrated. The operational impact of transient failures is unacceptable to SEPTA. Therefore, multiple occurrences of a transient failure, one where a failure is reported but no fault is found during investigation, will be classified as Chargeable Failures. Multiple occurrences of "no fault found" on the same car and same subsystem shall be tracked. In such a case, only a single failure shall be recorded, where it can be demonstrated by the Contractor that the fault is due to a common cause.

Failure, Primary: A failure that occurs without being related to the failure of associated items.

Failure, Secondary: A failure of a component that is a direct result of a primary failure of an associated component or subsystem, which can be specifically identified as having been the cause of the failure. Where Secondary Failures occur, it shall be the responsibility of the Contractor to prove that protection measures provided integral to the apparatus in which the secondary failure occurred were adequate. In general, it will not be acceptable for Primary Failure in a component or subsystem to lead to failure in other components or subsystems unless those items are provided specifically to prevent more serious or costly damage. Secondary Failures shall be counted as chargeable failures until proven otherwise to the satisfaction of SEPTA.

Failures, Simultaneous: Multiple primary failures that independently prevent satisfactory equipment performance. Each shall be counted as a chargeable failure.

Failure Rate: The frequency of failure.

Firmware: A type of software typically installed onto an embedded component.

Fleet: All cars furnished under the terms of this Contract.

Furnish: To supply and deliver to project site.

Gauge, Track: The distance between the inside face of rails, usually measured

0.625 inch below the top of the heads of running rails and at a right angle thereto.

Hazard: Any real or potential condition that can cause injury, illness, or death to personnel; damage to or loss of a subsystem, equipment, or property; or damage to the environment.

High Voltage: Primary Power, 230 Vac, and others as defined by system hazard and safety analyses.

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Indicated: As described in the Specifications, as-built drawings or as required by the other Contract documents.

Install: To place in position for service or use.

Interface: The point at which one subsystem component or subsystem comes into physical or functional contact with another.

Interlock: An arrangement in which the operation of one function or mechanism automatically causes (or prevents) the operation of another.

Inverter: A power converter that converts a DC voltage to an AC voltage. Inverters may also operate in reverse to generate a DC voltage from an AC voltage. Inverters may generate one or more phases of AC voltage.

Irretrievable: In braking, a condition imposed in which a brake cannot be released until a zero-speed indication is attained.

Jerk: The rate of change of acceleration or deceleration, normally measured in miles per hour per second per second.

Lead Cab: See Active Cab.

Lead Car: In the direction of travel, the forward-most car of the train.

Left Hand: Left side of the car when one looks toward the F-end from inside the car.

Line Replaceable Unit (LRU): An assembly or unit that can be removed and replaced by maintenance personnel to make a subsystem on the car serviceable.

Load Weighing: A function that measures car weight to permit control of tractive effort to achieve a constant effort-to-weight ratio.

Low-Voltage Subsystem: The voltage used for auxiliary systems on the car.

Lowest Line Replaceable Unit (LLRU): The lowest unit (component) of a system or subsystem, which is removable and replaceable from an installed position by standard attachments (e.g., by bolts and nuts or quick-disconnects). This definition is dependent upon the location of the equipment relative to where maintenance is being performed.

Married Pair (Two-Car Unit): The combination of an A-car and a B-car, semi-permanently coupled and sharing certain essential apparatus; a married pair is the smallest unit capable of independent operation.

Mileage, Operating: The operating mileage of a car is the total distance traveled by the car during scheduled and non-scheduled movements over established routes as recorded by SEPTA.

Mileage, Test Fleet: The accumulated mileage of all cars accepted for the test fleet.

The Test Fleet shall be accumulated on a calendar monthly basis. The Test Fleet's

SEPTA Silverliner VI Railcars 13 RFP Technical Specifications September 2025 monthly mileage shall be derived from actual mileage records as recorded by SEPTA for the cars.

Mean Distance Between Delay (MDBD): Defined as the ratio of the total operating miles accumulated (d) to the total number of train delays (D) attributed to the Contractor. All train delays shall be attributed by SEPTA using their normal review process.

MDBD = d/D

Mean Distance Between Failures (MDBF): Defined as the ratio of the total operating miles accumulated (d) to the total number of chargeable failures (f).

MDBF = d/f

Mean Distance Between Failures - ALL (MDBF-ALL): MDBF considering all chargeable failures whether in service, in the yard, or in the shop.

Mean Time to Repair (MTTR): Average time required to bring subsystem from a failed state to an operational state. MTTR shall be calculated considering diagnostic, repair (or replacement), and retest times only. The MTTR shall not include logistics delay time (the MTTR calculation assumes maintenance personnel and spares are available to make repairs).

The MTTR at subsystem level shall be used to verify that the subsystem meets the maintainability requirements. The initial maintainability analysis predictions shall be confirmed during the Maintainability Demonstration.

The calculation of subsystem MTTR shall use a weighted average taking account of the LRU/LLRU failure rates, and the respective average time to repair for those subsystems. The calculation for subsystem is shown below:

𝑀𝑇𝑇𝑅 =

%(𝜆! × 𝑇!)

%𝜆!

where:

MTTR is the Mean Time To Repair for the subsystem m is the number of subsystems or LRU/LLRUs that make up the subsystem λn is the subsystem or LRU/LLRU failure rate

Tn is the average time required to repair (corrective maintenance) the respective equipment units following a failure, expressed in hours (subsystem or LRU/LLRU)

SEPTA Silverliner VI Railcars 14 RFP Technical Specifications September 2025

Normal Service Conditions: Environmental conditions and operating parameters to which the cars will be exposed and under which the cars must operate in conformance with the requirements of the Specifications.

Offload: All passengers are removed from a train, typically as a result of a fault or failure resulting in a car being removed from service.

Operator: The individual onboard who occupies the active cab and is responsible for train operation. Also referred to as the “Engineer”.

Overhaul: Disassembly into component parts or subassemblies; replacement of worn and defective parts (with new or reconditioned parts as approved by SEPTA); and reassembly into complete functional assemblies, in accordance with the OEM recommended instructions/procedures.

Pantograph: A carborne device used to transfer electrical power from the overhead wire to the car.

Penalty Brake: A system initiated Full Service brake application to stop the train.

Performance: The measure of output or results obtained by a component, subsystem, person, team, and so forth, as specified.

Phase Break: Insulated (dead) section of catenary which isolates two different power sources.

Pilot Car(s): The first six cars, three married pairs, to be delivered and utilized for qualification testing. The terms Pilot car, cars, or vehicle are to be considered interchangeable.

Primary Failure: See Failure, Primary.

Primary Power: High-voltage dc power supplied to the car via the interface between the current collector and the contact rail.

Provide: To design, furnish, and install, complete and ready for intended use.

Ready-to-run: Same as AW0, no passengers or crews on board.

Redundancy: The existence within a car or subsystem of more than one means of accomplishing a given function.

Relay, vital: A relay whose function is necessary for the safe operation of the train and whose mode of failure results in the safe condition. Such relays must be approved by the AAR Committee E, Mainline Block Signals.

Reliability: The probability of performing a specified function without failure and within design parameters, for the period of operation intended, under actual operating conditions.

Repair: To restore a failed component or subsystem to an operational state.

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Requirements: The criteria that must be met in designing the car.

Revenue service: Use of cars to carry fare-paying passengers.

Rework: To reprocess a component or subsystem to as-designed condition.

Right Hand: Right side of the car when one looks toward the F-end from inside the car.

Safe: Free from unreasonable risk of harm, injury, or danger.

Safety: The condition in which persons are free from unreasonable risk of danger, harm, or loss arising from the design, manufacture, assembly, malfunction, or failure of the train, car, or any of its subsystems or components.

SEPTA: Southeastern Pennsylvania Transportation Authority, the party with whom the Contractor has executed the Contract, or the authorized representative of the party with whom the Contractor has executed the Contract.

Service Life: The actual time during which a car serves its intended purpose of safely and reliably transporting passengers. The end of service life occurs when degradation of the structural integrity of the car, or technical obsolescence of its electrical and mechanical subsystems, requires that it be removed from service.

Service Proven: A demonstrated history, subject to Approval, of satisfactory performance and reliability in rapid transit rail service under a duty cycle, operating conditions, track conditions, and speeds similar to those encountered in SEPTA's operations.

Shall: Denotes a mandatory specification or requirement.

Speed:

Balancing Speed: The speed attained by the car when resisting forces exactly equal the maximum available tractive forces.

Base Speed: The speed to which the maximum constant acceleration can be maintained at the nominal line voltage.

Civil Speed: The operating speed limit assigned to each track segment.

Maximum Operating Speed: The maximum speed at which the car will be operated in normal service.

Schedule Speed: The average speed of a car, from terminal to terminal, obtained by dividing the distance between these points by the time taken to make the trip, including time for intermediate station stops.

Car Design Speed: The speed at which the car can operate continuously, safely and without damage to equipment, independent of any speed limits imposed

SEPTA Silverliner VI Railcars 16 RFP Technical Specifications September 2025 by car controls, for all passenger load cases, wheel wear states, track conditions, etc. as defined in the Specifications.

Subcontractor: An individual, partnership, firm, or corporation that undertakes integrally on the Project the partial or total design, manufacture, or performance of one or more items of work under the terms of the Contract. As used herein, the terms "subcontractor," "supplier," and "subsupplier" are synonymous.

Subsystem: A subsystem comprises functional elements interconnected within a married pair to perform a specific function.

Superelevation: On a curve, the vertical distance that the outer rail is above the inner rail, measured in inches.

System: Each married pair, in its design and manufacture, should be treated as a single system rather than as an assembly of independently engineered and manufactured elements.

Test Fleet: All cars being monitored by the Reliability Program.

Time, Dead: The time from the occurrence of a step change of the control signal to the beginning of change of the controlled variable.

Time, Reaction: Time from the initiation of a step change of the control signal to the first attainment of the new steady-state value of the controlled variable, within the designed accuracy.

Time, Recovery: The time required for a subsystem or condition to return to its original state (or some stated percentage of its original value) after being disrupted or destabilized.

Tractive Effort: Propelling or braking force developed by the propulsion subsystem.

Trainline: The means of sending a signal to all cars in a train via a continuous electrical circuit connected through appropriate coupling devices.

Unrestricted Operation: Neither the Operator nor the control subsystems shall be required to alter the way in which the train is operated relative to its normal operating characteristics (e.g., reduce speed, longer dwell times, etc.).

Vital: A function or a unit that is critical to overall train or subsystem safety that is required to be implemented in a fail-safe manner.

Weights, Actual: The measured weights of finished cars ready to run.

Weight, Assigned: The loaded car categories assigned as the basis for design, and for subsystem and car testing.

Weight, Ready-to-Run: The weight of a car that is complete in all respects but without passengers or Operator; also known as the AW0 weight.

SEPTA Silverliner VI Railcars 17 RFP Technical Specifications September 2025

Wheel Slide: The condition in which the equivalent linear velocity of the wheel is less than the linear velocity of the car.

Wheel Slip: The condition in which the equivalent linear velocity of the wheel is not equal to the linear velocity of the car.

Wheel Spin: The condition in which the equivalent linear velocity of the wheel is greater than the linear velocity of the car.

Work: The furnishing of all the products, materials, equipment, services and the performance of the contractual requirements in the Contract documents, including changes thereto.

Work Week: Monday through Friday.

Zero-Speed: Car velocity of less than 0.5 mph (0.8 km/h) for more than 1 second.

1.12 Acronyms and Abbreviations

A. The following acronyms and abbreviations may appear in this document. They are defined as indicated:

AAR Association of American Railroads

AC Alternating Current

ACSES Advanced Civil Speed Enforcement System

ADA Americans with Disabilities Act

ABMA American Bearing Manufacturers’ Association

ABS Automatic Block Signaling

AISC American Institute of Steel Construction

AISI American Iron and Steel Institute

ALG Application Layer Gateway

ANSI American National Standards Institute

AOQL Average Outgoing Quality Level

APIS Automatic Passenger Information Subsystem

APS Auxiliary Power Supply

APTA American Public Transportation Association

AQL Acceptable Quality Level

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AREMA American Railway Engineering and Maintenance-of-Way Association

AR As Required

A/R As Required

ARP Address Resolution Protocol

ASCE American Society of Civil Engineers

ASHRAE American Society of Heating, Refrigerating and Air Conditioning Engineers

ASME American Society of Mechanical Engineers

ASNT American Society for Nondestructive Testing

ASTM American Society of Testing and Materials

ATC Automatic Train Control

ATO Automatic Train Operation

ATP Automatic Train Protection

ATS Automatic Train Supervision

AWG American Wire Gauge

AWS American Welding Society

BCP Brake Cylinder Pressure

BHP Brake Horsepower

BPVC Boiler and Pressure Vessel Code

BSS Boeing Specification Support Standard

BTE Bench Test Equipment

Btu British Thermal Unit

CA Commercially Available

CAGE Commercial and Government Entity

CASE Computer-Aided Software Engineering

CAMS Communications and Monitoring Systems

CB Circuit Breaker

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CBT Computer Based Training

CBTC Communications Based Train Control

CCP Communications Control Panel

CCT Color Correlated Temperature

CCTV Closed Circuit Television

CDR Conceptual Design Review

CDRL Contract Deliverable Requirements List, also an item on the list

CEM Crash Energy Management

CFC Chlorofluorocarbon

CFD Computational Fluid Dynamics

CFR Code of Federal Regulations

CGHAZ Coarse Grain Heat Affected Zone

CGI Computer-Generated Imagery

CIL Certifiable Items List

CMMI Capability Maturity Model Integration

CMV Charging Magnet Valve

COTS Commercial off-the-shelf

COT&S Clean, Oil, Test and Stencil

CPM Circular Permanent Magnet

CPM Critical Path Method

CPU Central Processing Unit

CRC Cyclic Redundancy Check

CS Consist Switch

CSI Cab Signal Interference

CTFD Cab and Train Functional Description

DB Dry Bulb

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DBDD Database Design Description

DBS Decelerometer-Based Speed

DBTT Ductile-to-Brittle Transition Temperature

DC Direct Current

DMS Document Management System

DOT Department of Transportation

DPRAM Dual-Ported RAM

DQT Design Qualification Test

DST Daily Safety Test

EAV Emergency Application Valve

ECAIS Electric Coupler Advance Inhibit Switch

ECCB Environmental Control Circuit Breaker

ECN Ethernet Consist Network

ECP Engineering Change Proposal

ECU Electronic Control Unit

ED End Device

EEPROM Electrically Erasable Programmable Read Only Memory e.g. exempli gratia (for example)

EMC Electromagnetic Compatibility

EMI Electromagnetic Interference

EN European Standard

EPA Environmental Protection Agency

EPROM Electrically Programmable Read Only Memory

ERS Event Recorder System

ES End Station

ESD Electro-Static Discharge

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ETB Ethernet Train Backbone

ETBN Ethernet Train Backbone Node

E-TCDN Ethernet Train Communication and Diagnostic Network

E-TCN Ethernet Train Control Network

ETFE Ethylene Tetrafluoroethylene

ETN Ethernet Train Network

ETP Electrolytic Tough Pitch

EUN Ethernet Unit Network

FAI First Article Inspection

FAT Factory Acceptance Test

FCC Federal Communications Commission

FFT Fast Fourier Transform

FD Functional Description

FDR Final Design Review

FEA Finite Element Analysis

FEM Finite Element Model

FHA Fire Hazard Analysis

FMECA Failure Modes Effects and Criticality Analysis

FMI Field Modification Instructions

FPMM Failures per Million Miles

FRA Federal Railroad Administration

FRACAS Failure Reporting Analysis and Corrective Action

FRP Fiber-Reinforced Plastic

FST Flammability, Smoke, and Toxicity

FTA Federal Transit Administration, United States Department of Transportation

FTA Fault Tree Analysis

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FTP File Transfer Protocol

GMAW Gas Metal Arc Welding

GSA General Services Administration

GW Gateway

HAZ Heat Affected Zone

HCFC Hydrochlorofluorocarbon

HDLC High-Level Data Link Control

HP Hostler Panel

HRI Hazard Risk Index

HSCB High Speed Circuit Breaker

HSLA High Strength Low Alloy (steel)

HTL Hazard Tracking Log

HTTP Hypertext Transfer Protocol

HVAC Heating, Ventilation and Air Conditioning

IACS International Annealed Copper Standard

IC Integrated Circuit

ICD Interface Control Document

ICEA Insulated Cable Engineers Association

ICMP Internet Control Message Protocol

ID Identification

ID Inside Diameter

IEC International Electrotechnical Commission

IEEE Institute of Electrical and Electronics Engineers

IETF Internet Engineering Task Force

IFI Industrial Fasteners Institute

IGBT Insulated Gate Bipolar Transistor

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IGMP Internet Group Management Protocol

I/O Input/Output

IP Internet Protocol

IPC Institute of Printed Circuits

ISACA Information Systems Audit and Control Association

ISO International Standards Organization

LACP Link Aggregation Control Protocols

LAN Local Area Network

LCD Liquid Crystal Display

LCU Logical Control Unit

LED Light Emitting Diode

LLDP Link Layer Discovery Protocol

LLRU Lowest Line Replaceable Unit

LRU Line Replaceable Unit

LRV Light Rail Vehicle

LTE Long Term Evolution

LVPS Low-Voltage Power Supply

MAC Media Access Control

MAC Panel Maintenance Access Panel

MC Master Controller

MDBD Mean Distance Between Delay

MDBF Mean Distance Between Failure

MIL Military Specification (or Standard)

MLCU Master Logical Control Unit

MP Married Pair

MPS Master Program Schedule

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MRB Material Review Board

MS Margin of Safety

MTC Manual Train Control

MTTR Mean Time to Repair

NACE National Association of Corrosion Engineers

NBS National Bureau of Standards

NDT Nil-Ductility Temperature

NEMA National Electrical Manufacturers Association

NFPA National Fire Protection Association

NIC Network Interface Card

NIST National Institute of Standards and Technology

NOA Notice of Assignment

NTP Notice to Proceed

NVR Network Video Recorder

OCA Operational Condition Assessment

OD Outside Diameter

OEM Original Equipment Manufacturer

OLED Organic Light Emitting Diode

OPF Operation Parameter Files

OSCC Onboard Secure Code Computer

O&SHA Operating & Support Hazard Analysis

OSHA Occupational Safety and Health Administration, United States Department of Labor; Occupational Safety and Health Act

OSI Open System Interconnection

OTS Operator Training Simulator

PA Public Address

PCB Printed Circuit Board

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PCS Passenger Call Station

PDR Preliminary Design Review

PDST Programmable Devices Summary Table

PHA Preliminary Hazards Analysis

PHL Preliminary Hazard List

PIV Peak Inverse Voltage

PLD Programmable Logic Device

PMI Production Modification Instructions

PMP Program Management Plan

P/N Part Number

PPE Personal Protective Equipment

PQR Procedure Qualification Records

PROM Programmable Read Only Memory

PSS Program Station Stop

PTC Positive Train Control

PTD Portable Test Device

PTE Portable Test Equipment

PTFE Polytetrafluoroethylene

PTU Portable Test Unit

QA Quality Assurance

QC Quality Control

QoS Quality of Service

QR Quick-response (Code)

RAM Random Access Memory

RAM Reliability, Availability, Maintainability

RCIL Reliability Critical Items List

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RE Railway Engineering abbreviation denoting AREMA-type rail

RF Radio Frequency

RFC Request for Comments

RFI Radio Frequency Interference

RFID Radio Frequency Identification rms Root mean square rpm Revolutions per minute

RRB RAM Review Board

RTCP Real-Time Control Transport Control Protocol

RTM Resin Transfer Molding

RTP Real-Time Transport Protocol

RWAS Roadway Worker Alert System

SAE Society of Automotive Engineers

SRAM System Requirements Allocation Matrix

SCAMPI Standard CMMI Appraisal Method for Process Improvement

SCCP Software Configuration Control Plan

SCFM Standard Cubic Feet per Minute

SCI Software Configuration Item

SCM Specification Compliance Matrix

SCIST Software Configuration Item Summary Table

SCP Safety Certification Plan

SCR Software Change Request

SCTR Specification Change Technical Request

SDD Software Design Description

SEPTA Southeastern Pennsylvania Transportation Authority

SFD System Functional Description

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SFTP Secure File Transfer Protocol, or SSH File Transfer Protocol

SHA System Hazard Analysis

SiC Silicon Carbide

SIR Surveillance Inspection Report

SITPM Systems Integration Testing Plan and Matrix

SMT Surface-Mounted Technology

S/N Serial Number

SNMP Simple Network Management Protocol

SNR Signal-to-Noise Ratio

S-P Severity and Probability

SPL Sound Pressure Level

SPM Safety Program Manager

SPMP Software Project Management Plan

SPTSR Secure Positive Train Stop Release

SQA Software Quality Assurance

SQAP Software Quality Assurance Plan

SQC Statistical Quality Control

SPL Sound Pressure Level

SRS Software Requirements Specification

SRTM Software Requirements Traceability Matrix

SSFD Subsystem Functional Description

SSH Secure Shell

SSHA Subsystem Hazard Analysis

SSL Secure Socket Layer

SSPC The Society for Protective Coatings

SSPP System Safety Program Plan

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STI Speech Transmission Index

STP Software Test Plan

STPr Software Test Procedure(s)

STR Software Test Report(s)

SST Software Summary Table

SUM Software User Manual

SVD Software Version Description

SVVP Software Verification and Validation Plan

SVVR Software Verification and Validation Report

TCD Train Control Display

TCP Transmission Control Protocol

TCR Train Composition Recognition

TCRP Transit Cooperative Research Program

TELNET Teletype Network

TFE Tetrafluoroethylene

TFT Thin Film Transistor

TFTP Trivial File Transfer Protocol

TL Trainline

TLS Transport Layer Security

TOD Train Operator’s Display

TOR Top of (Running) Rail

TRDP Train Real Time Data Protocol

TS Train Switch

TTDP Train Topology Discovery Protocol

TWC Train-to-Wayside Communication

TWDT…