This asset is an ATLS Controller and ATLS Slave all in one.
It takes the form of a Trigger to allow control of level crossings as part of the ATLS system. It operates in Level Crossing Mode only. V3.1 for TRS19.
Minor update to stop some ATLS crossings starting a new session 'closed'.
Full instuctions on its use can be found in the Properties Dialogue Box, (Question Mark Icon in Surveyor) or see the consolidated ATLS Tutorial at http://www.boatztrainz.co.uk.