Monday, June 06, 2016

Commuting Pittsburgh

This could be a book unto itself, but kudos to the data project by Mark Evans. See:  

ACS Commuter Data Visualizations at

You can see a visualization of tract to tract commuting data for any county in the nation.  I will just use this as an excuse to microscopically increment my own tech skills these days and figure out how to make an animated gif easily.  Using the tool check out the daily commuting patterns for Butler County, PA, and in particular the big mass of folks who come down to work in Pittsburgh every day. Let's see if this works:

If you want to see some previous analysis of commuting patterns specific to the City of Pittsburgh, I have that, albeit in a far more static format here. What I saw there is reinforced by the graphic of commuting for Allegheny County.  Check out what appears to be the largest green data point which looks like it moved down the Allegheny River.  I am pretty sure that is singularly the commuting of residents of Fox Chapel to Downtown Pittsburgh daily.


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Tuesday, June 07, 2016 3:49:00 AM  
Blogger BrianTH said...

Wait--for Allegheny, which is morning and which evening?

Because I would have thought the one where the dots are mostly moving inwards was morning, and yet that big green dot is moving outwards then. And it appears to be going out to something like Harrison Township--Fox Chapel is inside 76, and I would think it is captured by some of those smaller dots going back and forth the other way.

Tuesday, June 07, 2016 9:30:00 AM  
Anonymous Anonymous said...

That blob is a stumper. If you go to the source site, it says (a) it is showing a commute into the City and (b) it is only mapping census tracts where the commute is 20 to 100 miles. Fox Chapel is only 10 miles away from downtown. You need to go northeast of Brackenridge on the Allegheny before you get 20 miles away from the Point.

Tuesday, June 07, 2016 11:47:00 AM  
Blogger BrianTH said...

OK, it looks like the blob map is showing the commutes of people who reside in Allegheny County and who commute at least 20 miles. Since most people who live in Allegheny County commute less than 20 miles, it gives a pretty misleading picture of the commuting patterns of Allegheny County residents.

If you turn down the minimum to something like 4 miles--the system chokes at first, but eventually the pattern is much more what you would expect.

Tuesday, June 07, 2016 1:12:00 PM  
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Tuesday, February 06, 2018 10:16:00 AM  

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