§299.603. Preparation of system-wide qualification test plan. — Inbound Citations

(c) The railroad is authorized to conduct field testing of its PTC system on its system, prior to obtaining PTC System Certification from FRA, in accordance with its system-wide qualification test plan under § 299.603. During any field testing of its uncertified PTC system and regression testing of its FRA-certified PTC system, FRA may oversee the railroad's testing, audit any applicable test plans and procedures, and impose additional testing conditions that FRA believes may be necessary for the safety of trainset operations.

(d) To obtain the data required to support the qualification program outlined in paragraphs (b) and (c) of this section, the railroad shall submit a qualification testing plan as required by § 299.603(b) at least 60 days prior to testing, requesting approval to conduct the testing at the desired speeds and cant deficiencies. This test plan shall provide for a test program sufficient to evaluate the operating limits of the track and vehicle type and shall include—

(1) Identification of the representative segment of the route for qualification testing;

(2) Consideration of the operating environment during qualification testing, including operating practices and conditions, the signal system, and trainset on adjacent tracks;

(3) The maximum angle found on the gauge face of the designed (newly-profiled) wheel flange referenced with respect to the axis of the wheelset that will be used for the determination of the Single Wheel L/V Ratio safety limit specified in paragraph (h) of this section; and

(4) A target maximum testing speed in accordance with paragraph (a) of this section and the maximum testing cant deficiency.

(1) Prior to implementing a major upgrade to any safety-critical system component or sub-system, or prior to introducing any new safety-critical technology, the railroad shall submit for FRA approval the detailed test procedures and/or analysis in accordance with § 299.603(d).