Basically the only safe way for dispatcher allocate through a double crossover is with the crossover having one, two or three blocks, and every section though the crossover involving 2 switchs and a trailing block the otherside of the crossover.
Even the the SSL will need hand sweaking.
the problem is a crossover is only one switch and a double crossover when set to crossover has two non conflicting routes as there is no block for the diamonf.
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Steve G
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