A new tool to measure accessibility and walkability in cities is out called Close from Nat Henry. The tool relies on supermarket and libraries data points in order to assess closeness. Oddly the data sources ..read more

We are very excited this year to have Jarell Brown, Director of Analytics & Business Intelligence @ The Henry Ford and Principal Innovator of the Innovation Atlas as our keynote speaker this year. We will also be ..read more

This map in the American Geographical Society Library Digital Map Collection at University of Wisconsin Milwaukee was created by the City of Detroit Department of Report and Information Committee. It’s always interesting to see maps ..read more

I stumbled across this 1995 HUD plan from when the Planning and Development Department was still on the 23rd floor of Cadillac Tower. I can’t figure out why the Detroit Receiving Hospital is not called ..read more

by: Pat Sier Detroit voters went to the polls (and ballot boxes) last Tuesday to decide on multiple ballot propositions and candidates for November’s general election. The unofficial results published by the city have the ..read more

I’ve been asked many times over the years where all the pools are in Detroit. It is a tough question that I’ve tried to crack with aerial imagery, but that was too tedious. Recently, the ..read more

Detroit is a city of change even though we often seem relatively steadfast or even stagnant. I first mapped “business rings” of Detroit in 2014 and largely concluded they were empty except for national fast ..read more

This 1931 Detroit Street Railways transportation map from the digital collections at the American Geographical Society Library, University of Wisconsin-Milwaukee Libraries is a beauty. Can we bring back the bus route through the center of Belle Isle? I’ve been cataloging maps in various archives and collections to get a comprehensive picture of Detroit’s cartographic history. In the Fall, efforts will be going full force to georeference as many maps as we can to analyze the city through history. Check this map out on AllMaps, a platform to georeference any map from any institution that suppor ..read more

This University of Michigan team explored the repeat flooding within specific Detroit neighborhoods and the social determinants of health. The bright red clusters are areas of greatest concern. Notably, flooding is not limited to areas near the Detroit River, but is experienced frequently in multiple areas. “Hot and cold spots of flooding using the Getis-Ord Gi* statistic. Red dots represent “hot” spots, or locations of statistically significant clusters of homes that experienced flooding. Blue does represent clusters of homes that reported not experiencing flooding ..read more

by: Luke Loreti As a map nerd, I had loved Dustin Cable’s 2010 Racial Dot Map which he had created at UVA. I was saddened when this map left the internet, so as a way to get more comfortable using Census data and to learn some exciting new web map technologies, I decided to create an updated racial dot map using 2020 Census data.  Similar to previous dot maps, this map was created by combining two census data sources: the population counts published in the State Redistricting Data and the Shapefiles defining the census’s geographies. The decennial census pro ..read more