Refers to the system of measuring distances along a railway track or route for the purpose of precisely locating and referencing specific points, features, or structures along the railway line. Typically, the chainage value is a kilometre value, but can vary depending on region or standards.
In Lineardraft, the chainage value should be included when creating or editing a structure. Chainage values are accurate to three decimal places, and negative chainage values, while rare, are permitted.