Come on fellas, it's not just under-maintenance by councils that's caused the roads to be as they are.
As much as many wish to deny or ignore it the last winter particularly was a cold one. Most parts of the country saw many nights of frost followed by sleet and snow. As a cyclist on 23mm section tyres one could witness after each major frost event the road literally cracking up and new potholes opening up from the mechanical action of tyres going over frost-produced cracks, not to mention major surface ruptures caused by burst water pipes under the road surface or service valves. Add to this the increasing prevelance of wider tyres and higher torque vehicles - turbodiesels up to around 40% of vehicle parc - and you have a recipe for vast disintegration of Britain's roads.
Maintenance, what there has been, has also been hindered by the cold, wet summers of the last two years. Even with modern machinery there is no real substitute for warm, fine weather when undertaking major new asphalt laying or even patching sealed by bitumen.
There are other factors too. From a cyclists point of view one watches that it is common for a line of traffic to follow each other moronically; too close and literally in each other's wheeltracks(overtaking, which can disperse these ridiculous convoys, is almost dead due to fear of camera traps and road-rage attacks from the 'how dare you overtake me' brigade). This alone ensures that the road surface wears unevenly and any nascent potholes are soon excavated out by blindly following, non-circumventing, zombie drivers. Another factor is the speeding up and slowing down caused by over-zealous attention to speed limit enforcement and increasingly powerful, torquey vehicles. Accelerating hard and braking hard to maintain a decent average speed in increasingly common 30mph and 20mph limits again wears the road surface faster than would otherwise be the case with a more even flow.