THE BRONX - New Metro-North safety measures have been installed one week after a train derailment in the Bronx killed four people and injured dozens more.

The MTA says crews have put in protections at the Spuyten Duyvil curve to warn engineers of the approaching 30 mph speed reduction. If a train does not slow down, emergency brakes will automatically be applied.

The sharp turn is where the train flew off the tracks last Sunday going 82 mph, according to the National Transportation Safety Board. Engineer William Rockefeller had allegedly been nodding off at the controls.

Beginning on Tuesday, there will be two people in the engineer’s driving area during sharp curves in the tracks instead of one. The MTA says an added person will enhance communication between train engineers and conductors.

Two federal lawmakers are also proposing that Metro-North trains, as well as all others nationwide, be fitted with cameras pointed at engineers and the tracks.

New York Sen. Chuck Schumer and Connecticut Sen. Richard Blumenthal say cameras could prevent dangerous behavior, such as falling asleep or texting, and may also be used after a crash to determine a cause.