05-31-2015, 08:56 PM
I personally don't know, but I assume they know what they're doing. My mother and law would tell you that they don't know what they're doing. Please don't be like my mother in law. 
The concrete slabs are sitting on "long" ties that are wider than the conventional track ties, so the concrete will always stay at the same position in relationship to the rail height.

The concrete slabs are sitting on "long" ties that are wider than the conventional track ties, so the concrete will always stay at the same position in relationship to the rail height.