North American Signaling:

ATSF double track Automatic Block Signaling

by Carsten S. Lundsten

Document Revision History

18-01-2002

Document moved to the lundsten.dk domain.

26-09-2000

All illustrations redone to suit style of other documents. Some examples slightly improved..

Section on Track Warrant Control with DT/ABS deleted.

Minor text changes.

Duplicate file with "printer friendly" colors added.

26-09-2000

History Document created.

[Back]