Horizon Signal Technologies Inc. raised $53,000 for The ATSS Foundation through the auction of two trailer-mounted portable traffic signals, setting a fundraising record.

Street Smart Rental, based in Lino Lakes, Minn., made the winning bid of $49,000, with Horizon Signal adding $1,000 to bring the bid total to an even $50,000. In addition, GP Roadway Solutions of Honolulu, Hawaii, which also participated in the auction, donated $3,000, bringing the grand total to $53,000, said Lori Diaz, director of The ATSS Foundation.

Horizon Signal donated 100% of the proceeds from the May auction to The Foundation, which provides education about work zone safety and supports the families of people killed or permanently disabled in work zone incidents.