CAMBS® (Computer-Assisted Manual Block System) is a highly effective, low-cost dispatching system which helps control train and on-track work equipment movements on unsignalled territory. Dispatchers can handle more traffic (more subdivisions and higher traffic levels) as compared to manual methods of train control while at the same time dramatically improving safety by automatically checking for conflicts.  Ideally suited for regional and short-line railroads, CAMBS®  has been operationally proven and user-tested for many years on both single and double track, or in ABS territory, and is currently in active use on railways located world-wide.

The system eliminates train order offices and line staff and permits the efficient operation of caboose-less trains through the protection of switches. CAMBS®  can display its controlled territory over several workstations, thus allowing redistribution of the territory to fewer desks during low traffic periods. The system interlocks and continually maintains active authorities while preventing conflicting orders.

Direct communication between dispatcher and train provides instantaneous control. Train authorities and limits are graphically displayed to aid the dispatcher according to origin and destination, and color-coded according to type.

CAMBS® supports the General Code of Operating Rules (GCOR), Northeast Operating Rules Advisory Committee (NORAC) and Canadian Rail Operating Rules (CROR) and can be adapted to satisfy local requirements. It runs on Windows with off-the-shelf PC hardware and requires minimal user training.

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