👉 In the context of geography and transportation, "subrail" refers to a portion of a railway line that is located below the tracks or under the surface. Subrails are typically designated for pedestrian use due to their low visibility and safety concerns. For example, if you're looking at a map showing a section of a rail line, it may be labeled as "Suburban Subrail" because it's situated below the main track or tracks on the railway. This can include areas such as train