Find path on rail network

Discussion created by modybsystematics-co-il-esridist Employee on Nov 13, 2012
Latest reply on Nov 20, 2012 by pstevens-esristaff
We have a rail network and a set of trains (A,B,C???) that should go from one point to anther (A train from a1 to a2, B train from b1 to b2 etc).
The main problem here is that two trains cannot be on the same segment in the same time (even if the segment is long).
Our idea is to find the path for train A. Then block all the segments that train A crosses in the time it crosses them before we try to solve the path for train B.
The question is how to block the segments. Should we use barriers ??? they do not have time limit (as far as I know). Should we use Historic traffic or Live traffic?
How do we translate the information about the route of train A into one of these ways before we solve train B.
It is clear that we will need code but any hint will help.