"Lasers Over Bread & Cheese"
On the morning of November 3rd, 2021, Long Island Rail Road's "LaserTrain" is seen heading east over Bread and Cheese Hollow Road on the Port Jefferson Branch in Kings Park, NY with "glass out" MP15AC 150 leading the way.
LIRR's LaserTrains consist of two MP15ACs sandwiching a retired Budd M3 pair equipped with technology installed by Laser Precision Solutions. They are tasked with vaporizing leaf residue off of the rails throughout the system. During the fall season, leaves fall onto the tracks which cause slip slide conditions when ran over by trains. Many railroads utilize rail washers for this issue but the LIRR has recently turned to this technology for the task.