Matthew Mitchell wrote:That's an interesting exercise in drawing lines on a map, but if you're going to do a 'dream big' plan that has more than a minimal hope of being implemented (even in part--sometimes history works out such that one or two lines from such a plan get built even if the whole thing doesn't), you have to be thinking in more than just two dimensions.
First, you need to pay attention to the lay of the land and other physical constraints. Cheltenham Ave (which is where I guess you're putting the "Ogontz-Cheltenham" alignment) has a very steep hill between Willow Grove Ave and Paper Mill Rd. You've also got constructability to worry about, which is why wide streets (e.g. 38th) would be more attractive than narrower ones (e.g. 40th)
Agreed. I did this to the best of my ability, as I am presently out of town and could only research so much about the layout of certain areas. If I have missed something and you have alternative ideas or alignments, I would really appreciate suggestions (though in the case of Cheltenham, I'm less worried about construction and more worried about the residents not wanting it).
Matthew Mitchell wrote:Second, you need to create lines to serve travel markets, not just because there aren't any other lines nearby or because there's a right of way there. One thing you might do is look at current SEPTA ridership by line to see where (particularly in the city) travel is heaviest.
I did look into bus routes that were the busiest in operation. Several of the lines on the map (Bustleton, 5th-Passyunk, and others) exist for that very reason. Regardless though, that doesn't mean that areas lacking rapid transit should be neglected. I understand ridership is important, but so is connectivity, convenience, and reliability.
Take Andorra for example. It's not the densest part of the region. You could make an argument that it does not need a subway. Commuter X from Andorra might take the bus into town if he/she has no choice, but if he/she despises the bus (as many people do unfortunately) and doesn't want to pay to ride the R6 (or drive to it), then that person will more than likely drive into town.
Now let's insert the Parkway-Ridge Line into this scenario. Commuter X from Andorra now has the option of a less expensive, reliable, fast, and connected (one-seat rides to Manayunk, Roxborough, the Art Museum, Center City, South Philly, and much more) rapid transit line to get to town. And if you add in the connections from the other lines...you see where this is going. The more connected, the more people will ride.
Part of the reason the subway system is so successful in New York (aside from the high density, geography, and more) is because it's simply more convenient to take the subway in New York than drive (in most cases). This presently is not the case in much of the Philadelphia area and the Delaware Valley. It needs to be rectified; that's how you attract riders. Then of course there's the typical challenges of improving safety, maintenance, etc.
Matthew Mitchell wrote:And I suspect some of the proposed stops are too close together--there's a trade-off between accessibility and both construction cost and running time.
You could be right about some of the stops. Care to elaborate on which ones stuck out to you?
Matthew Mitchell wrote:Fleshing out the loop is a good thought exercise and discussion starter, though. I'd also consider extending that out further west (maybe 38th) because of the growth of employment out there.
It's not a bad idea, but I don't see any reason why the loop should go beyond 30th Street/University City. Plus, those areas around Penn are already well-served by the MFL, Regional Rail, the subway-surface trolleys (both existing and the ones proposed on the map), and buses.