I listened to the program too. It was fascinating especially as I had Google Maps open at the time and homed in on the villages/towns mentioned. I also opened up old-maps to compare what was and is. It was fascinating, made more so by linking street names mentioned by some of the interviewees.
This lead on to the Witton Park story and the website - The Village that refused to Die.
http://www.daledaniel.fsnet.co.uk/ I'm not defending the planners (far from it) but it was interesting to note that in Witton Park's case the village was born out of iron making not coal mining directly which had been in decline in the area. I got on to my Mum about it and she said she knew that some of her relatives had come from Witton but was not really aware of the D village policy. I suppose you also have to remember that at the time (Mum's now 86) many people of her generation had been away at war and they saw such 'progress' as being part of the new beginning. The issue was also possibly clouded with the advent of the Nation Coal Board in 1947 and the plans mentioned by carnkie.
My first school Paddock Style, Philadelphia, no longer exists yet the rows of miners cottages opposite in Voltage Terrace are still there, as is 'The Power' (power station, Grade II listed) at the bottom of the terrace going down to the pit head where my Grandfather (Albert Purvis, Chainmaker) worked as one of the pit's blacksmiths, (the Lampton, Hetton and Joicey Colliery).
While at the time the policy may have been perceived to be draconian, time has for whatever the reasons, shown that change was inevitable and that the communities have still survived albeit in some cases fragmented by the clearance of the colliery areas which was the reason they were there in the first place. Industrial Parks with all manner of trades and products can never hope to achieve the unity created in a community whose sole purpose was the winning and distribution of a mineral whose use was the basis of so much and used by so many.
The coalfields of Durham were in decline just through progress, as were many others. What happened in the 80's was brutal (forget the politics side). I can remember my Grandmother, then in her late 90's, heartbroken seeing the end of what to her was a way of life, an era that will never return.