Our new ticketing site is now live! Using either this or the original site (both powered by TrainSplit) helps support the running of the forum with every ticket purchase! Find out more and ask any questions/give us feedback in this thread!
Google search of "RILA survey" gives http://www.raildata.nl/english/rila.asp which seems to be informative.
RILA case study is headed "Rail Infrastructure Alignment Acquisition System (RILA)"