Peter J: Unfortunately, some parts of the UK countryside do not easily lend themselves to the creation of purpose built cycle paths....though I can't help but feel that a lot of bridleways could double up without too much inconvenience to the equine community (a one metre wide hard surface either to the side or in the middle with soft tracks for the horses?). The cost I guess would be prohibitive, if local authorities don't have the resources to fix the existing roads I suspect that cycle and bridle paths have no chance of being improved.
The lanes here in North Wales (and I suspect in other areas of the country) now carry far too much fast moving traffic to be safe for cyclists (IMHO of course!), the A and B roads are of course much worse.
Shame about your bikes......