Here is the list of service changes due to railworks for November.
Basically, trains are buses if you want to go to London at a weekend.
We endured months and months of disruption in the run-up for the 2012 Olympics, made tolerable only by the belief that at least there'd be a high quality rail network as a result. There isn't.
I'm pretty sure the Victorians didn't close the railways every weekend to do track maintenance. I don't know what it is that Greater Anglia's trains do to the tracks that thumping great steam engines didn't, but I wish they didn't do it.