First, PDong, can you show me where you read that tracks with no rail are measured 20cm from the line. I always thought it was 10, but I can't find that information again. I tried.
How do you know it was created without a rail in mind?
I have personally run on tracks that have the rail removed. It happens all the time.
I'm not sure which Washington's is, to be honest, but I don't think anyone who has posted on here has been SURE which way the track was measured. All PDong's post did was restate the measurements that we gave, and then contradict us on the use of a rail at UW, with no proof one way or another.
In fact, the only thing we know for sure from this thread is that d3runner was wrong when he implied it didn't matter and that all tracks are measured the same.