I did 2 different icons for the 'north-south' orientation so that they would actually sit on the tracks
Found an oddity: if you place your tracks first the hex will display them, but it won't show up as a 'railroad' hex. Also, if you place the tracks, then the icons, and then add more railroads to the map the tracks will vanish under the icons. You can of course re-add them after placing the icons (the hex will then show 'wooden building, railraod').
I'll have the other zoom levels done by tomorrow.
Enjoy






