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Mapping

Exploring Data with Spatial Analysis

Heatmap of crashes involving deer around Bloomington, Indiana

Where deer crashes happen around Bloomington and how to prevent them

Over the last 20 years there were more deer involved in collisions with vehicles in Monroe County, Indiana than either pedestrians or cyclists. Here's a heatmap of the areas with the highest rates of deer-involved crashes from 2003-2022 around Bloomington. Best viewed on a desktop monitor. The map

Intersection Crash Analysis with QGIS

Intersection Crash Analysis with QGIS

How to perform four different methods of intersection crash analysis. Compares how and why the results differ.

Toolkit for Sidewalk Location Priority

Toolkit for Sidewalk Location Priority

Given limited funds for building and repair sidewalks, where the's optimal place to find them? Ideally, we'd like to factor in the potential demand for the sidewalk, how it might improve safety, and equity. The solution should be comprehensive– considering all locations in a city. It

Exploring Ann Arbor's spatial data in QGIS. Walk isochrones are shown along with a 2000' grid and building footprints.

How Ann Arbor used spatial analysis for sidewalk prioritization

Ann Arbor, Michigan got a lot right in their efforts to build out their sidewalk network in an objective and equitable way. More funding: a larger pie First, they not only considered how to slice a funding pie more fairly, they raised money for a much larger pie of funding

Calculating Connectivity Rank for Bike Network Planning

Calculating Connectivity Rank for Bike Network Planning

You've got a plan to build out a 100 miles of of additional bike facilities. Which ones should you build first to make the biggest impact? In addition to all the metrics that would usually apply to bike lane planning, now there are a few others that are

The most dangerous intersections for pedestrians in Bloomington, Indiana

The most dangerous intersections for pedestrians in Bloomington, Indiana

Where are the most dangerous places to cross the street in Bloomington, Indiana? This report analyzes and visualizes crash data involving pedestrians from 2003-2022. Summary Positive Findings * The top intersection was Kirkwood and Dunn, which is already safer thanks to seasonal bollards. * College and Walnut crossing downtown also appear in

Using QGIS to map a county-level metric from a spreadsheet

Using QGIS to map a county-level metric from a spreadsheet

🇪🇸o para cartografiar todos los cantones de una provincia Let's say you've got a spreadsheet with a metric for every county in a country that you want to map. There's no geo-data in the spreadsheet, so how to visualize it? This post expects some