prrjim posted:A second "modern" solution was installed just over a year ago at Greenwich Jct in Ohio where the old Big 4 line Crosses the old B&O. Both lines are busy CSX mains now and there are connections. The B&O line is double track all the way across the state. I think I remeber that the Big 4 is now single.
They cross on diamonds. The new installation which a local CSX told me came from an outfit in texas, raises both lines the wheels ride on flanges through the diamonds. About 30 feet each side of the diamond the rail becomes a channel with a slight rise in the bottom that the flanges meet and ride up on through the diamond. They raise the wheels just enough that they don't bang on the diamonds, but ride through smoothly on the flanges somewhat like a lionel diamond. I saw train go through and there was no banging or sound from the diamonds. These were new and the CSX guy said they were running through them at 35 mph and expected to go up to 45 mph the following month. I was there on the way home from the Cleveland O Scale Show.
http://knorek.com/RR/Ohio/Curr...London/NewLondon.htm
Nice spot! Will have to check it out if I am in that area!
