Category: Cities

Finding geographic information about Chicago and elsewhere

February 10, 2009 / / 0 Comments

The City of Chicago’s GIS division of the Department of Information and Technology as well as the Zoning Department provide copious data on boundaries, crime, zoning, etc… And I’m not talking about a library of PDF files. You can’t analyze or manipulate or calculate using PDF – I’m talking about data sets, shapefiles, or aerial photographs.

You can start here on the GIS website.

 The Chicago Police produce the CLEARMAP website. And even the Bicycle Program throws down with bikeways and bike parking data. Check out Wicker Park’s Center for Neighborhood Technology and its urban data visualization websites, like their Housing and Transportation Affordability Index.

List sources for your city’s data in the comments. Milwaukee has its own Spatial Decision Support System called COMPASS. Here’s Maricopa County’s (Phoenix, Mesa, Tempe) ArcServer-based online GIS website.

Check to see if EveryBlock has started data mining your city. They began their news collection and repackaging efforts in Chicago, naturally 🙂 They are the first organization to find a new way to present Chicago’s bike rack installation info.

UPDATE: The community at OpenStreetMap has a huge list of datasets available for cities and places around the world.

GIS and mapping tools

February 9, 2009 / / 0 Comments

Some of the work I do for school and my job requires that I make maps. I’ve never taken a class on how to make maps or analyze data sets featured in maps (what GIS does), so I learn as I go.

There’s no one around me I can call upon when I have questions that need immediate answers. Well, there’s me! Because of this, I must quickly find a solution or workaround myself.

Today I had to import a list of Chicago Transit Authority and Metra rail stations into ArcGIS so I could plot them on a map that also showed Chicago’s boundary and our bikeways. I could do this in Google Earth, but then I would have less control over the printed map I wanted to make, or the image output. ArcGIS has a built-in geocoder and I learned how to use it six months ago, but a skill not practiced is lost – and I forgot how to do it.

That’s okay – what follows is how I overcame this barrier:

Because I know how to use PHP to instantly create Keyhole Markup Language (KML) files (the format which Google Earth and Maps speaks fluently). Then, with this user-contributed KML to SHP plugin for ArcGIS, I was able to convert my KML files to Shapefiles and display them on my map. Unfortunately, my custom “fancy” icons were lost in the translation. Supposedly this alternate user-contributed script does the same thing.

Other tools I used to get my map created:

  • BatchGeocode.com – This site is indispensable for turning a list of addresses (with names, descriptions, and URLs) into the same list but with latitude and longitude coordinates! It will even create a KML file for you.
  • KML Generator (PHP class) – This class allows you to quickly and easily create KML files from any array and array source of coordinates. I store the transit stations in a database and run a query on the database and loop through them to generate the points in a KML file.

I’d like to thank James Fee’s GIS Blog for the links to the ArcGIS scripts/plugins I used in my project. To everyone else who must confront software, technology and mapping roadblocks, there’s almost always a solution for you.

Read about how I got around QGIS’s lack of geocoding.

A simple way to make biking easier

November 16, 2007 / / 0 Comments

Biking is already super easy. There’s so little investment. And most people’s bikes aren’t even in top or good condition. Bikes will roll for so long before the last piece to break down actually goes ahead and breaks down. You don’t need a license, but you do need some lights. No helmet is required and neither is registration.

Buy a bike and go.

But it’s hard to go uphill, right? Fortunately, Chicago is flat. If you think there are hills, please vacation to Seattle and Portland to see what cyclists there have to deal with. The only hills we have in Chicago are bridges going over the different branches of the river, and a handful of overpasses – and these are mainly to go over railroads because Chicago’s expressways are smartly built below regular ground level.

A couple bike lifts, like this one mentioned and picture on CoolTown Studios, might be just what is needed to get half of a town’s cyclists up and over to the grocery store or music venue on the other side.

Just to quickly inform you how it works: There is a tinny escalator installed on the side of the road, but instead of steps, there are short poles. Stand over your bike with one foot on the pedal and the opposite foot on the end of the lift, waiting for a pole to show up so you can step on it (pushing it backwards) and be pulled and rolled up the hill. It’s kind of like a ski lift on a bunny hill.

The article I referenced indicates that hills are a problem for Vélib, the bike-sharing system that opened in Paris this summer. Many bikes are abandoned or returned to stations at the bottom of hills: bike renters didn’t want to pedal up and walked instead. Install some bike lifts on some strategic hills in the city and this problem could go away. This issue also presents problems for the system’s basic workings: there must be an equal distribution and flow of bikes being returned to their stations. In these cases, maintenance vans working for the bike-sharing system operator must pick up bikes overflowing at one station and drop them off at stations missing bikes – namely the stations at the tops of hills.

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Classmate discussion: The UIC campus

November 15, 2007 / / 0 Comments

I read through classmate Karen C’s blog.

I first wanted to answer her question, “Have you been to Rogers Park?” I would answer, “I haven’t” and the entry would be done. I didn’t know where to go with that. I’ve heard many things about the place, and that it’s right next to Andersonville, one of the city’s major gay ‘hoods. I think there’re some great bakeries up there, and there’s a Metra stop. It’s going on my never ending list of places to visit – it even has the benefit of being extremely easy to get to. My bike job will probably take me there soon.

Now I will be responding to her post, “UIC development. Blog 27.”

She included a picture taken from the second level of the Student Center East looking west onto the lecture center and I guess what you would call our “university quad.” To digress briefly: does every university have a quad or is that some movie gimmick featured at Ivy League schools?

Her point is that UIC’s buildings are nothing to look at or pay attention to, and in fact make you want to turn away. The lecture centers have a neutrally-appealing design – they aren’t horrible, but they still aren’t inviting. Prominent in the photo’s background is the UIC Daley Library. It’s one of the larger buildings that shares the Sovietesque, monolithic design seen everywhere on campus (University Hall and Science and Engineering Labs being the other two).

The lecture centers could be improved by removing every other column and hanging ivy or some greenery from the roofs. The library is a different story. It also suffers from an outdated and non-functional lobby design as well as an entrance plaza. The plaza should be removed and made smaller. More trees and planters should be added to divert our eyes away from the building. The lobby should be redesigned to better funnel people where they need to go. Putting aside the exterior design, the internal spaces of the library are very confusing and do not lead people to their destination. Most things students need in this library are not on the first floor and there is one tinny escalator whisking people up and dropping them into the middle of a study and research area. Elevators are out of the way and finding bathrooms might take a few mistakes to find the right one.

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The creative class

November 14, 2007 / / 0 Comments

Thank goodness Chicago has a stable creative class. We’re a more interesting city because of it. Or maybe we were a more interesting city first and the creative class followed.

It doesn’t matter for us anymore – the creative class is here and it’s not leaving as long as Chicago doesn’t drastically change its policies and attitudes that are welcoming to the creative class. Changing the policies to instigate such a dramatic change as an exodus of knowledge workers and artists would be economical suicide and would be antithetical to one of this city’s foundations and strongpoints: diversity.

The comments following will make more sense if you’ve read Richard Florida’s “The Creative Class.”

I think that Chicago definitely did not have to go through the processes of attracting desired creative-class workers as Pittsburgh is doing now, or other cities before it. Chicago had some already existing features and elements that are universally attractive to all people, let alone the creative class. These features are ethnic enclaves, extensive parks and recreation systems, well-known museums and cultural centers, an independent arts and music scene, and lots of diverse shopping (just another attraction to the city – superficially, this doesn’t seem like a make-or-break interest, but for those who have money to spend, they need a place to spend it).

Florida mentions how Chicago is unique because of how the working class and creative class coexist. He attributes this fact to a political and cultural solution that the city and the current Mayor Daley devised. I think the city’s existing dynamics (local, long-standing, universities; history as a national hub for business and transportation; enormous variety of people; and a plethora of “stuff to do”) were at the right levels and the systems of the city were making the right connections and this naturally made Chicago a great place to foster growth of the industries which are heavily supported by the creative class, or which grew to accompany them.

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