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Spacing Control

One Block BitSwitch can be installed at any location on a layout and it will maintain a predetermined space between trains by holding a following train until the safety margin is attained.  This single control point approach can be used at a signal or other location.   If the trains are running at a similar speed this is a satisfactory method for limited control.

IF COMPLETE AUTOMATIC
CONTROL IS YOUR GOAL

The layout below represents a minimal layout of four "Logic Sections" that could automatically control 3 trains. 

Because each "Logical Section" Block BitSwitch is checking the next TWO blocks forward when a train triggers sensor #1 the following actions are activated.

  1. If sensor #2 and sensor #3 have previously been triggered in that order the train is not stopped.
  2. If the next forward sensor #2 has been triggered but sensor #3 has not the train is stopped.
  3. If the train is stopped it will resume speed when sensor #3 is triggered.
 

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