But the costs, efforts and communications of the closure have been a bit more tricky.
Overground and Lorol are all pretty new creations but the management of this scheme has been laden with decent folk and good intentions but somehow it falls short of the mark.
The cordons closing stations have been pretty lame. The signage (as shown here at Hampstead Heath station) are well below the standard promised or expected. The staffing is a series of people desperately trying to provide information in a context where there is little.
The provision of a replacement bus however, has provided a fascinating insight. Two elements with the bus, the first is how it is much busier at certain times than you would expect - I caught it late the other night and there were a host people - families, shift workers and visitors. And the second, is how interesting the route is - not as an experience, but in demonstrating the need for more horizontal bus routes. One of the major transport hiccups in london is the way everything flows in and out of the centre and with the exception round here of the C11 and the North London line there is little across north London.
I wonder if there is now a case for approaching TfL and asking that they take a medium to long term look at their bus routes with a view to more and more variation on these routes - there is clearly a demand...