As someone who was raised in Dinas Powys but who now lives 12000 kms away in Sydney, I get back to Dinas Powys occasionally and can compare how it is now to the 1960's. Couple of things that effect traffic issues plus a few other observations
1. Parents - stop driving your kids to school - let them walk - we did even when it rained
2. Stop traffic driving through village. Make it pedestrian only. Pehaps old Watts Garage site should be made into car parking.
3. Improve the bus services - pathetic - buses are too slow, too small, too crowded and too infrequent
4. Turn the area of common between the Southra and Cardiff Road into a car park - handy for village and for trains/buses - my parents will probably disown me for saying that
5. Do something about the castle - either restore it or put it out of its misery - its an embarressment
6. The village is not a village any more - its a badly designed thoroughfare
7. Limit car ownership to 3 per family - in my tiem a family was lucky to have one car
Cheers
Richard Jeffery