Someone made this proposal some time ago on Facebook or here and Dere or someone else from the dev team showed interest. But: I don't assume that RS.com will ever do one because it isn't the time period of the NEC we'll get.
robbit wrote:It has been done for RailSimulator not sure if it would work for Railworks but you can find it at http://www.Trainsim.com File name rsamtrak.zip