There are a number of YouTube Videos that will help you get to grips with TRANSYT. At least one of these covers the basics of setting up a a simple network and running it. Others cover more specific features of the product such as how to model priority junctions, and how to optimise for arterial routes within networks.
www.youtube.com/TRLSoftwareChannel
Some of the videos are recordings of our series of Webinars. To find out when our next ones are please go to www.trlsoftware.co.uk