Dave Zucal posted:Matt. Another way to skin the cat is to put LEDs in the roadbed that flash as the subway passes over them. I either saw it here or on youtube and it looks great...
That might have been this OGR thread which I participated in from over 5 years ago. Here's the kludgy video I made at the time; I too thought it looked pretty cool! Duh, I realize that's not a subway car...so I beg for your forgiveness.