I have a half mile of solid cycle lane near me, trouble is it's close to a railway station so Monday to Friday it's simply used as free parking by London commuters. It's literally pointless if you don't enforce it, and we know that nobody will.
Enforcement is something of a joke where I live anyway...
There's a mini roundabout in town where 4 roads meet, all double yellows as it's narrow and impassable if someone parks. Unfortunately there are 5 takeaways around the junction and we know how far British people can walk when they're picking up food or using a cashpoint. So Thursday to Saturday it's simply left to be impassable with tailbacks as it becomes "kebab cripple corner".
A dickhead neighbour of mine parks a big jeep thing right on a T junction at the end of my road. Not *close* to the junction, no, literally right on the give way markings making it impossible to see right when turning. I've regularly had near misses while trying to inch out. I wrote to the council with pictures and of course they did sod all.
Like Drago says, the parking enforcement people stick to the very central bit of town where they'll happily patrol the multi storey car parks all.day for otherwise safely parked cars whose tickets expired 5 minutes ago, because that's easy cash. They're not interested in areas where there are safety issues, especially if it's a 10 minutes walk from the lucrative multi storey.