Dec. 29 (UPI) — U.S. Division of Transportation officers on Tuesday introduced the implementation of the optimistic prepare management automated braking system forward of a federal deadline.

The Federal Railroad Administration introduced that the optimistic prepare management, or PTC, know-how was in operation on all 57,536 required freight and passenger railroad miles forward of the Thursday deadline set by Congress.

“Reaching 100% PTC implementation is an amazing accomplishment and displays the Division’s high priorities — security, innovation and infrastructure,” U.S. Transportation Secretary Elaine Chao mentioned.

The PTC methods are operated by prepare and monitor operators by means of controls aboard trains and alongside the tracks.

They’ll routinely sluggish trains that exceed pace limits, stop trains from touring down the wrong tracks if switches are within the flawed place and forestall collisions by conserving two trains from being on the identical monitor.

Implementation of PTC methods was mandated by the Rail Security Enchancment Act of 2008 for Class I railroads’ major traces that transport greater than 5 million or extra gross tons of annual visitors and sure hazardous supplies in addition to major traces the place intercity or commuter rail passenger transportation is frequently supplied.

Total, 41 railroads had been required to put in PTC methods, together with seven Class I railroads, Amtrak, 28 commuter railroads and 5 freight railroads.

Class I railroads invested $11.5 billion into the system and the Transportation Division supplied $3.four billion in grant and mortgage funding.