Wonder if he knows the meaning of 'Cameo' and 'Exchange of
Timetable'
So I shall explain to him
Cameo: One bus, e.g. SBS1709J (perm on Service 175), operates on
another Service (16) for one (or sometimes more) day. Usually, It
will not be perm unless 1) the service it is on has been withdrawn,
or 2) It is operating on a new service especially on the first day
(and sometimes a depot transfer has been made)
Exchange of Timetable: Two or more buses exchange timetables with
each other - e.g. SBS9814K (on 65) usually comes to this place at
11:00am. But today, SBS9806J comes at that time. Is this a
cameo
