Recent New York coverage in these pages has produced reader correspondence on three specific items: the mayor's subway delay-reduction plan, the Hudson Tunnel funding milestone, and the office-conversion tax credit. Six representative letters appear below.

From a former MTA engineer

The author writes: “The signal-modernisation acceleration the mayor announced is more ambitious than the labour calendar can sustain. The mayor has the money; the system has the labour-window constraint. The arithmetic does not change.”

From a Northeast Corridor advocate

Jordan Klein of New Jersey writes: “The Hudson Tunnel agreement is a meaningful milestone but the work that follows will be longer and harder than the announcement implies. The advocates who pushed for the agreement deserve sustained recognition.”

From a developer

The author, who has worked on three conversion projects, writes: “The conversion credit is producing real applications for the first time. The Department's processing capacity is the binding constraint on whether the applications convert into actual buildings.”

From a Brooklyn resident

The author writes: “The transit improvements the mayor described are welcome and overdue. The accountability mechanisms the plan includes will be tested across the next several years.”

From a Manhattan resident

The author writes: “The office-conversion projects in lower Manhattan are visibly underway. The pace is slower than the headlines imply but is real. The next few years will determine whether the credit produces the supply the projections forecast.”

From a longtime reader

The author writes: “Sustained coverage of these specific operational stories is the kind of journalism the city has always benefited from. Thank you for keeping at it.”