2010 Pennsylvania Code
Title 75 - VEHICLES
Chapter 33 - Rules of the Road in General
3311 - Driving on divided highways.

     § 3311.  Driving on divided highways.
        (a)  General rule.--Whenever any highway has been divided
     into two or more roadways by leaving an intervening space,
     physical barrier or clearly indicated dividing section so
     constructed as to impede vehicular traffic, every vehicle shall
     be driven only upon the right-hand roadway unless directed or
     permitted to use another roadway by official traffic-control
     devices, police officers or appropriately attired persons
     authorized to direct, control or regulate traffic. No vehicle
     shall be driven over, across or within any such dividing space,
     barrier or section except through an opening in the physical
     barrier or dividing section or space or at a crossover or
     intersection as established.
        (b)  Traffic-control devices regulating turns.--Whenever
     necessary for the protection and safety of traffic, official
     traffic-control devices may be installed at an opening in the
     physical barrier or dividing section or space or at a crossover
     or intersection prohibiting or regulating a turn or turns as may
     be necessary pursuant to the authority of this title.