How old are the South Shore block signal system and catenary? Are there any plans to replace it?
The age of the catenary varies from place to place. New constant-tension catenary is planned to be installed within the next few years, although that will not necessarily involve replacing the entire catenary system in place now.
I don't know the age of the block signal system offhand. A CTC system is planned within the next few years as well. Construction of a new building at Shops to house the CTC board is expected to begin shortly.