Starting today:  C and D train service in Manhattan will be disrupted for the rest of the week to replace signals near Chambers Street that control a track switch.

Northbound D trains will run local from 59th Street-Columbus Circle to 145th Street in Upper Manhattan, and northbound C trains will run express from Canal Street to 145th Street, from Tuesday morning until early Saturday morning.

Any local stops bypassed by the C train will still be served by the E train, and B trains will continue to run local along Central Park West. Officials from New York City Transit, who announced the changes on Monday afternoon, apologized for the short notice.