RR Track Symbol

I like to draw maps in Corel for the publications I produce, and often have the need to show railroad tracks. I am unaware of a way to create and add to Corel line symbols, and I wonder if there is a way to create the railroad symbols used by map makers. The symbol consists of a single line with receptive crossbars to resemble railroad crossties. Any ideas, or do I need to rely on labeling to let readers know they are looking at a railroad line.