We are on a corner of a cul de sac with a further cul de sac off of it, probably about the same number of properties as you have mentioned beyond ours. We have never had any issue with traffic noise - the only slightly weird thing is when you sit outside and folk walk past you can hear them if they are talking but it's great having no direct neighbours on one side.
We have the same, about 60 properties fed from the road at the side of the house which spilts then into about three smaller cul de sacs. Still hardly any noticeable traffic and all the children play outside on the road. I like not having any neighbours to that side and we have a larger plot than the other houses. Also just sold our house so hasn't put buyers off.