PC-Rail Norwich 5.1 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This PC software works fine with 32-bit versions of Windows XP/7/8/10/11. PC-Rail Norwich is included in Education Tools.
We recommend checking the downloaded files with any free antivirus. The most popular version of the software is 5.1. The actual developer of the software is PC-Rail Software. Pcrail2.exe or pcrail2AE.exe are the default file names to indicate this program's installer.
From the developer:
This simulation features an interesting layout, with train services on 4 routes converging on the terminus station. The area includes the large Crown Point depot, as well as Trowse Swing Brige and Whitlingham Junction.
The Norwich area, as represented in this simulation, is largely controlled from one panel of Colchester Area Signalling Centre.
You may want to check out more software, such as PC-Rail Champaign Illinois, PC-Rail Reading or PC-Rail Basingstoke, which might be similar to PC-Rail Norwich.