Where an exchange is listed as FTTC / FTTP there will be a mixture of either FTTC or FTTP, but not both for the same area
Where FTTP is stated, it will likely be FTTP rolled out an area at a time from near the exchange outwards
FTTP does not use cabs at all
BT in most cases are using existing ducting to blow the fibre and in a lot of places some of the fibre is already in place
I have several new areas of tarmac along the road which comes to me from the exchange which lead to a double manhole distribution point where the fibre then goes up the pole which is situated next to the double manhole. The fibre was blown through the ducting in one night as far as I'm aware and there was very little road digging (and disruption) involved
The double manhole replaced my cab
In Bradwell Abbey where the fibre comes in from underground there were lots of issues around provision of fibre to properties. I therefore believe BT have opted for FTTP over the pole for all other areas, as it requires them to do far less work (and less requests for wayleave)
This is all based on my experience and others who have posted here regarding the various processes
Be* Unlimited