There's loads of interesting stuff on this Bristol streets site which has information plotted on a map, like finding cycle routes and commenting on cycle facilities, bus information, properties for sale, and one where you can plot your favorite quiet spaces. Unfortunately there are no quiet spaces plotted for Montpleier :( But Picton street is marked as a potential quiet area, which I agree with. I tend to go St Andrews Park or Ashton court to get away from the traffic and not having a garden makes places like this even more important, but if there's any hidden gems in Montpelier that I'm missing, stick them on the map as it's nice to be able to pop somewhere a bit more local to read a book in the sunshine. I don't really find Montpleier Park very relaxing though for some reason, but you may disagree.