All aboard! At left and above: The 16th annual Holiday Model Train Exhibit at the Barron Arts Center on Rahway Avenue in Woodbridge. The trains will be on display through Dec. 23. Below: Colonia's Michael Gelesky, who created the train track layout, points out one of his trains to Thomas LoCoco, 8, Avenel, as they look over the trains. PHOTOSBYCHRIS KELLY staff