The time has come, PennDOT officals say, to install median cable barriers along I-78 from exit 60 (Route 309 south) to New Jersey. The decision, and its transition from concept to reality, comes just days after a fatal crossover accident that killed a Lower Saucon man this week. On Jan. 25 Maxwell Musselman, who was traveling westbound, crossed over the grassy median into oncoming traffic and hit a minivan. Musselman was declared dead at the scene. He is the second crossover fatality in the past year. According to the most recent national Highway Traffic Safety Administration data, …