Traveling in Pennsylvania

Last weekend we used the Pennsylvania Turnpike for our drive to the Pittsburgh area.  Because we were headed away from Philadelphia, we were surprised to see roadside emergency signs "warning" us about the visit by Pope Francis.  At the Somerset service plaza, we found cards on every table reinforcing the message (see photo).  The back of the card had advice about safe driving that would normally be relevant to a severe winter storm.

The Turnpike's website also had this "highway advisory" (the original was in ALL CAPS):

To all travelers on the Pennsylvania turnpike Interstate 76, Interstate 276, and Interstate 476. Motorists are advised of the upcoming Pope visit in Philadelphia on September 26 and September 27, 2015. This event is expected to cause significant congestion around the Philadelphia region from the Reading interchange to the Delaware River bridge, and from the Pocono interchange to the mid-county interchange. For travelers not destined for Philadelphia during this time, find an alternate route.

Although the Pope poses no threat, the traffic surrounding his visit will be disruptive, so the Pennsylvania Turnpike staff prepared a standard risk communication message that describes the potential problem, its extent (time and place), and what one can do to mitigate it.