New train control system for blue line

A new train control system of a type already widely used in other cities will be tested out on the metro’s blue line and then extended to the rest of the system. It’s not a cheap experiment, expected to cost $565 million, and be working by 2028.

The existing control technology dates back 50 years to the origins of the metro system.

Update to add the Gazette and to ponder why this, why now? Maybe the old system really is not sustainable, and rather than being maintained and repaired, needs to be replaced, if not immediately, then soonish. Eventually your technology gets so old you can’t even get replacement parts – as happened with the old MR‑63 metro trains.

But it’s hard to believe that imperfectly spaced metro service is a more pressing fix than, say, better bus service.

Also, why the blue line?