Sen City is for 2004 and not for 2006
Sen City 2006 is both version TR04 and TR06! This is from the description from the DLS:
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SEN CITY 2006 (TRS 2004 & TRS 2006 Version)
Version 2, October 2006 - See fixes in ReadMe file. If you decide to update, you will need both new map and new scenario for the scenario to work.
This is version 2 of a self-contained update to my original Sen City ScENario now with over 40 trains and 14 routes. Trains now have drivers, opening doors and load passengers. There is also an experimental industry in the form of a log train.
PLEASE VIEW THE README FILE FOR ONE SIMPLE TWEAK TO A TRAIN CONFIG FILE OR YOUR TRAINS WON'T STOP AT RED LIGHTS!
This scenario has no start or finish. Just ride along, stop and watch the trains or drive them yourself. Always obey the signals though, as the automation may want another train to pass first!
The HTML ReadMe file and the JPEG Diagram of Routes can be found in the Sen City 2006 Scenario Folder, Kuid2:76656:42006630:1
Select 'Edit in Explorer' from CMP if you have TRS 2006 or find it in 'Dispatcher-Downloads' for TRS 2004.
Sen City 2006 is compatible with TRS 2004 & TRS 2006 BUT SEE THE README FILE. TRS 2004 users will require additional content
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Just download all the versions ... if you are using TR06 do it from CMP ....
I got this far for this route because it's one of the best automatic and drivable subway route there is!!
Good Luck and have fun!!
Ish
Side note: Also get Jeffmorris NYC subway route ... It's super huge ...
PS Any problems e-mail the creator Boat ... He's really a nice guy that will help you!!