I second that - the traffic, though not always bad, can be hard to predict at times (especially on the pike). If you want to avoid it and don't mind going out of your way, I'd suggest coming in from Middlesex Road (if you live on the outskirts of Carlisle - this won't really work if you're commuting form Harrisburg). If you're coming from north of town, you can take Rt. 34 north to Middlesex drive over to Middlesex Rd, which will bring you out right behind the law school. From in town, take North Street or Louther St. east till they become Claremont Road. At the end of Claremont is Middlesex Rd. Middlesex Rd comes out onto the Pike right near Advantica.