Sch 4 para 17
As regards the capacity restrictions of a duration of at least 30 consecutive days and affecting more than 50% of the estimated traffic volume on a railway line, the infrastructure manager must provide the applicants upon their request during the first round of consultation with a comparison of the conditions to be encountered under at least two alternatives of capacity restrictions. The infrastructure manager must design those alternatives on the basis of the input provided by the applicants at the time of their requests and jointly with them. The comparison must, for each alternative, include at least— (a) the duration of the capacity restriction; (b) the expected indicative infrastructure charges due; (c) the capacity available on diversionary lines; (d) the available alternative routes; and (e) the indicative travel times. Before making a choice between the alternatives of capacity restrictions, the infrastructure manager must consult the interested applicants and take into account the impacts of the different alternatives on those applicants and on the users of the services.