Quote:
Originally Posted by swisstrains
Hello,
Have you tried using a search engine such as Google?
If you search using the terms "fouling point" "cant deficiency" "track superelevation" and "railway/railroad trackwork" you will find many specialised websites.
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thank you very much MR Swisstrains,
finally i found it in
http://www.rgsonline.co.uk/ 
thank you for your time