Control section maps

Control sections provide a convenient and reliable linear referencing method for locating features along a roadway. Control sections generally do not move or change, regardless of changes to the route name or number.

Reading control section numbers

• A control section number consists of six digits (e.g. 0115-02).
• The first four digits are the control number and can range from 0001-9999.
• The last two digits are the section number and can range from 01-99.

This map series is updated annually, typically mid-summer, following the publication of end-of-year data from the previous calendar year.