Probably SBST thinks that space should be given some seats if
possible, since WAB bus and low floor buses have lesser seats.
Moreover seats behind the front doors are taken away because of
the Transitlink farecard vandilators, and since 1993 when Volvo
B10M MK3s came in, the space is reserved for the vandilators.
Until now without the use of vandilators, the space is open and
why not might as well give more seats to the commuters???
When the Volvo MK3s came in, the validators had already been
equipped only on the front door side, but on the driver cabin side,
Old red ticket machine was still been installed until they
eventually replaced by TransitLink validators in 1996, thus making
it 2 validators in one bus.