The Middletown Borough Police Department is advising of a new traffic pattern at the intersection of Oak Hill Dr & Pine St.  The intersection is now a four way stop intersection.  Motorists traveling north & south on Pine St now have a stop sign.  New traffic patterns are not always observed by persons who regularly travel the route.  Additional signage has been temporarily placed to draw attention to the change.  MPD advises motorists to exercise caution when traveling through the intersection.