Pennsylvania Statutes Title 16 Pa.C.S.A. Counties § 16922. Plan of system to be followed and variations

(1) relocate, straighten, widen, extend, alter, open, construct and improve the proposed roads as laid out, surveyed, marked and shown upon the plans of the system;

(2) originally locate, lay out, establish, construct and improve roads which substantially supply the system or parts of the system which, although not parts of the system, are deemed by the court to be main thoroughfares of sufficient importance to be improved by the county and added to the plan; and

(3) vacate as much of the roads of the system and of roads already established as may be rendered unnecessary by the changes or by an entirely new location.