Found this AP wire today:  http://www.philly.com/philly/business/transportation/304536631.html Mayor Zimmer is right not to be happy, and ...

With JFK Plaza (aka LOVE Park)'s redesign plans being released --  to Inga Saffron's acclaim -- the city is now reinvesting in two ...

(This post started as a fork from the previous post, The Streetcar Fiasco .) Let us recall, for reference,  Width, and the Perception of W...

Streetcars have become a major fad over the past few years, ever since Portland put in theirs. Portland Streetcar In Portland's cas...

In my last post I talked about the potential Kansas City's rail alignments offer . Now I want to discuss the challenges. Fig 1. Here ...

So for various reasons -- some of which are probably related to hormones and such -- my thoughts have taken a recent Midwestern turn. In par...

From Landscape Urbanism and its Discontents , courtesy Envision Baltimore : Rather than having an urban fabric based on spatial definition...

Pertinent to this post : Since the PPA has no inkling of what the actual supply of any of their permit zones actually is , they routinely ...

One of my long-term projects has been developing a mathematical model for scheduling in Jarrett Walker-type transit systems. Today, I made ...

I've been playing a lot of Skyrim  lately, and ruminating on Elder Scrolls lore, so if you pardon this nerding-out, I'd like to offe...

Some notes on what a sample elhi math program would look like... Grades 1-3: Introducing Relations What are relations? What are operato...

I am very much of the opinion that the way we teach math here is fundamentally broken. Here are a few places where I think it can be fixed: ...

In Gunn's Great Mistake , I outlined what I believe was SEPTA's greatest failure during the Center City tunnel construction era--nam...

One of the major moves David Gunn made, while he was head of SEPTA back in the late '70s and early '80s, was the curtailment of its ...

I just found about floor and ceiling functions the other day. Briefly, a floor function, is a function that returns the greatest intege...

(Please note that this post is the intellectual chassis for some other work.) Philadelinquency recently ran an excellent piece on how...

From this recent Philadelinquency piece : Gentrification pressure in Philly affects less than 1/3 of the city’s total surface area and i...

Back in September 2012 I wrote a post called The Space Between , in which I detailed urban design treatments linking the Penn and Drexel cam...