Positive train control is being installed systemwide on New Jersey Transit.

It may be a small inconvenience for passengers at the Mount Olive train station, and on multiple lines throughout NJ Transit, but the agency says upgrades that will create the delays are all to keep passengers safe.

Positive train control is an automatic speed controller designed to prevent crashes.

The absence of an automatic speed control system contributed to the deadly Hoboken train crash back in 2016.

But making the upgrades requires pulling locomotives and cab cars out of service to do the installation.

That may mean delays.

Beginning Monday, June 4, some trains will be temporarily discontinued or have changes of origin and/or destination.

This will impact customers along the Northeast Corridor, North Jersey Coast Line, Morris & Essex Lines and Pascack Valley Line.

Other trains throughout the system will have schedule and/or station stop adjustments.

These schedule adjustments are temporary and will be restored in early 2019.

Positive train control needs to be installed system wide by the end of the year by congressional mandate.

There were concerns this spring NJ Transit was not far enough along in its installation process.

NJ Transit trains could be banned from the tunnels under the Hudson River, Richard Anderson, Amtrak president and chief executive, has said if this does not get done.

The price tag is $320 million.