"Robert McCall" wrote:

Earlier today at around 4pm I was in the Strand waiting in vain for a
heritage RM 15 to take me to the tower, however in the end I had to catch
a
regular 15.

While en-route I noticed both a Roofbox RT and a RM on route 4 on it`s way
to Waterloo.

Does anyone know why these buses were operating on this route today?

To mark the last day of step-entrance buses on this route, which I believe
is the last TfL service (other than the Heritage RMs) to go over to low
floor easy-access buses. Therefore quite a significant occasion - in a way,
even more significant than the end of the RMs in regular service.

Chris