Our company have been initially approached to do some work on NS. In preparation for this I want some basic information on them, mostly about their signalling but also their system as a whole. Apart from their own website, which is surprisingly fairly barren of statistics, and Wikipedia which gives a lot more background, I'm struggling to find out exactly what their system comprises of.
For example: - How much route mileage is double track vs single track? - How much CTC is there? ABS? TWC? etc - How many trains a day on each route? - What proportion of "extras" to "regular, daily trains"?