2.4.3 DISRUPTED TRAFFIC MANAGEMENT

leading to a reduction in the available capacity, the main objective is to minimise the disruption to services and redistribute the maximum remaining capacity to the RU. In the event of interferences with trains subject to the same management principles, the following rules apply in the same order of priority: 1. minimising delays overall, also in relation to their possible consequences on the major cities; 2. assigning priority to the train best placed to make up any delays, with regard to the scheduled path, restoring the scheduled succession, if necessary. In the event of interferences between trains subject to different management principles, the following rules apply in the same order of priority: 1. minimising delays for trains subject to management priorities; 2. restoring the scheduled succession, also in relation to the possible consequences on the major cities; 3. assigning priority to the train best placed to make up any delays, with regard to the scheduled path. Trains running in advance of schedule must not cause any delays to other services, regardless of the category. For the purposes of these rules, trains are considered punctual if:  they arrive at their destination with a delay equal to or less than 5 minutes, in the case of Passenger trains; The punctuality with which the IM measures its performance is calculated by market segment and month using the following formula: IM punctuality = (NC-NRFI)/NC where: NC = number of trains operated NRFI = number of trains arriving at destination with a delay more than 5 minutes for delays attributable to RFI. The % OS (0-5) and % OS (0-15) indicators, as per measure 7 of ART resolution no. 16/2018 of 8 February 2018, can be calculated through the PIC system. The data relating to punctuality performance of the previous service timetable and the target values for the following time (defined with the following numeric format "xx, yy%") are published, no later than February 28th of each calendar year in RFI website. The RU is obliged to utilise the time path according to the schedule set out in the access contract and consistently with the technical specifications of the path, as specified in paragraph 2.3.3.3. The RU, before operating a train, shall notify the IM of any changes regarding its technical specifications, especially those capable of impairing speed performance. If the IM issues internal memos, guidelines, specifications or other documents illustrating management rules, it must notify the Railway Undertakings, the Authority and, if they also concern services subject to PSOs, the relevant awarding Entities prior to the entry into force thereof.

Commuter trains

“Commuter” trains, with regard to the major cities, are incoming trains in the 6.00 to 9.00 time slot and outgoing trains in the 17.00 to 20.00 time slot, as identified by the IM, also with the involvement of the entities that have concluded the relevant service contracts, among the trains featuring a large number of passengers. These trains are qualified at each timetable period change, or if a large number of services are rescheduled, among the regional and long distance PSO services.

2.4.3 Disrupted traffic management

In the event of any disruptions, or circumstances which may reduce the capacity of the infrastructure, affecting the regularity of the service, whatever the cause, the IM shall enforce the applicable technical