DANBURY, Conn. (AP) The Connecticut Department of Transportation is making some fixes to the Danbury branch line of Metro-North Railroad.

The DOT is replacing rubber mats and other equipment at crossings to repair malfunctions that have plagued a $70 million signaling system.

Transportation Commissioner Jim Redeker said silt build-up and moisture at some crossings drew the attention of engineers to the age and condition of the rubber matting, crossbuck signs and rails that set off a more sensitive train detection system when no train approaches.

Redeker said full service could be restored in May. The crossings have been a problem since a new signal system was completed in November.