A while back, I had undertaken a little project to determine how many country’s restaurants were represented in the Chicagoland area. This was one of the earliest projects I used that leveraged location and GIS information, and I thought I would revisit it …
I’ve spent the majority of my life in the Chicagoland area. So it came as somewhat of a surprise to me when I recently ran across the name of a city that was less than 30 miles away that I had …
Determining the closest city that you’ve never heard of Read more »
As part of the investigation in crime around the 606 trail, we pulled the crime data from Chicago’s open data portal. The following is a straight forward sample Python script for pulling a daily extract. Note that the available crime data on …
Extract Chicago Crime Data from the Open Data Portal Using Python Read more »
In a previous post, I examined creating a bounding box for the 606 trail to enable analysis of surrounding crime. While this is straight forward and a convenient heuristic to explain what we were doing, notice that it’s not fully …
In a previous post, I gave an overview of a project to investigate the occurrence of crimes near the 606 (Bloomingdale) trail in Chicago. Data for the investigation came from the City of Chicago Open Data Portal, and investigation into …
As part of my explication of the process for investigating crime “around” the 606, I had created a bounding box for the trail and wanted to visually display the trail within the box. I couldn’t find a handy GEOJSON or …
A GEOJSON and KML file for the 606 (Bloomingdale) trail Read more »
In a previous post, we had discussed investigating crime data around the 606 (Bloomingdale) trail in Chicago. One of the main issues I faced was how to identify crimes that occurred “around” the 606. Each detailed crime record contains information including: …
I live near the 606 trail in the Bucktown neighborhood in Chicago. This urban trail (also known as the Bloomingdale Trail) is a converted railroad trail that is now used for recreational purposes like walking and biking. I really have …
In a couple of previous posts, I reviewed the concept of using space filling curves as a heuristic for producing decent solutions for the traveling salesman problem (TSP). The attraction of this approach to me was the simplicity of implementation. …
I have done a number of professional projects where I had the same fairly well defined problem in different domains. The problem boiled down to one of starting with two destinations and programmatically mapping them as part of a larger …
Converting two locations into a turn by turn mapping Read more »