@Darren Sager I dream of the NJ Transit you allude to, one that is "on schedule to handle the issue with plenty of volume to spare."
It is no surprise that the NYC metropolitan area, especially New Jersey is suffering from years of neglect of its public transit, roads and bridges. Read Here >> NYT articles on NJ Transit Neglect
You only have to drive the length of Route 1/9 , NJ Turnpike, Parkway, Route 78, Route 3, Lincoln & Holland Tunnels, GW Bridge or any other major roads in North NJ during mornings and evenings to witness paralyzing gridlock. And God-forbid there is an accident or emergency - lines of people at transit terminals and vehicles on roads is mind-boggling. The whole system comes to a complete stop. I know there is research somewhere on number of years we waste waiting - in traffic or in lines for transit that does not function. (NJ transit has taken 5 years of my life)
Our transit system and roads, in its current state is woefully inadequate to handle current demands, much less any growth in numbers. As @Paul Moore pointed out, there is a shift towards living in urban areas. I'm just very unsure of our elected leadership's ability to have a vision towards efficient transit in our urban corridors. What we have instead is Bridgegate, a lethal accident in Hoboken and countless tales of neglect, wasted time and opportunities.