http://www.ksl.com/?sid=42974092&nid=148&title=police-video-crossing-arms-not-active-when-frontrunner-train-hit-semitrailer
Crossing Arms not active when FrontRunner train hit semitrailer.

NORTH SALT LAKE — Police video that captured a FrontRunner train slamming into a semitrailer Saturday shows that the railroad crossing arms were not lowered or flashing to warn drivers.
A North Salt Lake police officer was among the vehicles approaching the crossing at 1100 North about 10 a.m., and his dashboard camera recorded as the southbound FrontRunner train smashed into a FedEx semitrailer pulling two trailers.
The train crashed through the first of two trailers, missing the truck's cab. Two drivers in the vehicle narrowly escaped injury, and the 82 passengers on the train were unharmed, according to the Utah Transit Authority. Two individuals reported feeling whiplash in the crash.
The FedEx truck was one of several vehicles — including another semitrailer — in the area of the crossing at the time, the video shows. No other vehicles were involved in the crash.
Dave Goeres, UTA chief safety and security officer, called the crash "unprecedented." As of Tuesday, no mechanical or system issues have been identified, he said. UTA is conducting an investigation of all its systems and is interviewing employees to determine what caused the accident and whether human error occurred.
Initial indications are that the crossing arms were affected by snow and ice from Saturday's storm, Goeres said, causing them to drop into the safety default "lowered and active" position, where they remained for about 12 minutes prior to the crash.
A UTA employee was dispatched to the crossing and was at the scene when the crossing arms raised, Goeres said. The employee was still at the crossing when the crash occurred.
It is unknown why the gates remained up as the train approached, Goeres said. UTA is still investigating how long the crossing arms had been raised before the train arrived, and why they activated and lowered again moments after the crash.
"That's what we're looking into is why the gates went up prior to the accident and why the gates went back down afterward," Goeres said.