Simple Oval

This sample layout will allow up to three trains to operate without collision.  This loop could be an extended main line that is part of a larger layout but will not be entered by additional trains while the Section Control is in automatic mode.  The Block BitSwitches simply check the next forward block to determine if it is occupied. If occupied the BitSwitch will slow the train to a stop using the momentum value stored in CV4.  When the next block is vacant the BitSwitch will release the train and cause it to accelerate using the momentum value stored in CV3.

This layout requires:

1    Section Control

4    Block BitSwitches

4    Track Sensors