The chairman of New York’s transportation agency says officials are reviewing safety practices at railroad crossings after an SUV drove onto the tracks and collided with a commuter train.

Metropolitan Transportation Authority Chairman Thomas Prendergast said Wednesday the agency is partnering with a nonprofit that educates the public about the dangers at railroad crossings.

The crossing where the crash occurred in the Westchester County community of Valhalla has no barrier between the street and the tracks.

Prendergast said such crossings present safety issues.

He said it would cost millions to build an overpass or tunnel at the many street-level crossings on the Metro-North Railroad and the Long Island Rail Road.

MTA board members suggested safety improvements such as sensors that would alert a train of a vehicle on the tracks.

(AP)