I've been commuting on the PA Turnpike. If you haven't experienced the danger, it works like this. Most, if not all, of the major interchanges are under construction. The natives tell me the construction projects started just after the First Continental Congress. Anyway, the key thing is the degree of navigational difficulty. Got a new Porsche? Preferably turbo - the entrance ramps are a worthy test. The off ramp near Harrisburg onto Highway 15 South is a favorite- one has about 20 feet to get up to the speed of the traffic. Tach up, pedal to the floor. If you are in a minivan and a 18 wheeler is approaching, I hope your insurance covers Life Flight. Similarly, the on-ramp from 309 South to the Turnpike West has a thrill ride combo of a cattle chute into a chicane. (One of the Turnpike's engineers' favorites - sometime chicane first, sometimes last). I recommend the Bell Full Competition helmut combined with a NASCAR flamesuit....along with that 911 Carrera Turb...