 For each route there will be one or more different schedules which the
 user will choose from a list of all schedules available. This is carried
 out in a similar manner to the route selection procedure.

 Since the user has the selected route, all schedules should be present and
 will therfore appear in GREEN. If any appear in RED then it is likely that
 they have been accidentally removed, or not sent. If they have been removed
 then they can be restored by using the disk that they first came on. If they
 have not been sent, then the original disk(s) should be returned for
 remedy.

 Having selected a schedule, the user will now have to select the motive
 power. The schedules will show which motive power they are based on during
 the selection, although the user may depart from realism here and drive
 any power!
