TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER f: HIGHWAYS
PART 520 CONTROL OF JUNKYARDS AND SCRAP PROCESSING FACILITIES IN AREAS ADJACENT TO THE FEDERAL-AID INTERSTATE AND FEDERAL-AID PRIMARY SYSTEMS OF HIGHWAYS IN ILLINOIS
SECTION 520.30 MEASUREMENTS OF DISTANCE
Section 520.30 Measurements of Distance
a) Distance from the edge of a right of way shall be measured horizontally along a line normal or perpendicular to the centerline of the highway.
b) Distance along the highway shall be measured along the centerline of the highway.