The only DD buses having CCTVs are
- VSOs
- Tridents
- SBS9525U
Let mi explain..
For VSOs and Tridents, the case is different from SBS9525U.. For
Tridents and VSOs, they only had one CCTV on the upp deck to check
whether there are anybody standin on the upper deck and to see if
all passengers are settled down before they move off (although most
of the time, this is ignored) and obviously, another at Exit Door..
BUT, for SBS9525U's case is different.. they have 6 CCTVs on
board.. and, instead of black and white screens inside the drivers
cabin, they have a Large LCD Colour SCreen.. (P.S. 9525U is
actually on trial for the CCTV Thing.)