The Tamsui line was a single track line with passing sidings at most stations. Sidings range from just over 1 mile apart to the maximum distance between Zhuwei and Tamsui which was a 2.6-mile segment.
The Tamsui line was characterized by a single track with adjacent passing tracks at most stations, ranging in distance from approximately 1 mile apart to the maximum of 2.6 miles between Zhuwei and Tamsui.