robby2, it sounds like what you might be best doing is using "1km Basemap A" by g0akh, kuid 119912 60004, which is on the DLS. It is a 1 km square box on which you place the map graphic of your choice. You just replace the 1024x1024 pixel TGA or BMP that comes with the object with your own 1024x1024 pixel TGA or BMP 1km map. Place the Basemap on some blank trainz baseboards and off you go. The basemap may be raised and lowered so you can put it out of sight as you need to in order to place scenery. Trainz scale is 1024 pixels to the kilometer.