![]() (ii) A mandatory directive is issued associated with a highway-rail grade crossing warning system malfunction as required by §§ 234.105, 234.106, or 234.107 (i) A derail or switch protecting access to the main line required by § 236.1007, or otherwise provided for in the applicable PTCSP, is not in its derailing or protecting position, respectively (4) Provide an appropriate warning or enforcement when: (3) As applicable, perform the additional functions specified in this subpart (2) Include safety-critical integration of all authorities and indications of a wayside or cab signal system, or other similar appliance, method, device, or system of equivalent safety, in a manner by which the PTC system shall provide associated warning and enforcement to the extent, and except as, described and justified in the FRA approved PTCDP or PTCSP, as applicable (iv) The movement of a train through a main line switch in the improper position as further described in paragraph (e) of this section. (iii) Incursions into established work zone limits without first receiving appropriate authority and verification from the dispatcher or roadway worker in charge, as applicable and in accordance with part 214 of this chapter and (ii) Overspeed derailments, including derailments related to railroad civil engineering speed restrictions, slow orders, and excessive speeds over switches and through turnouts Interlocking signal arrangements in accordance with the requirements of subparts A-G of this part, and PTC enforced stop on all routes. (C) Interlocking - all PTC routes intersecting Interlocking signal arrangement in accordance with the requirements of subparts A-G of this part, PTC enforced stop on all PTC routes, and either the use of other than full PTC technology that provides positive stop enforcement or a split-point derail incorporated into the signal system accompanied by 20 miles per hour maximum allowable speed on the approach of any intersecting non-PTC route. (B) Interlocking - one or more PTC routes intersecting with one or more non-PTC routes Interlocking signal arrangement in accordance with the requirements of subparts A-G of this part and PTC enforced stop on PTC routes. (A) Interlocking - one or more PTC routes intersecting with one or more non-PTC routes
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