Technologies of interest emerge that, with initial review then warrant a more in-depth research.  An initial engineering review was conducted of the Marvin system , which has been developed by CPE Systems in New Zealand to highlight areas of potential rail stress, and which has undergone selected trails with KiwiRail.  Following on from a completed literature review , this project will include a  proof-of-concept test of the Marvin system including field validation and assessment of scientific instrumentation, operating principles and report on the current state of development of the product.