Harald Kliems

#30DayMapChallenge: A boring points map

map
Madison (WI)
housing

Comparing fair market and assessed value in Madison

Nothing new on mode share in Madison in 2023

Madison (WI)
transportation
American Community Survey

American Community Survey one-year estimates show commute mode share remains stable

Do speed limit reductions reduce speeds?

Vision Zero
transportation
Madison (WI)
Vision Zero

Comparing pre-post data in Madison, Wisconsin

Bicycle Network Analysis and Bicycle Commute Mode Share

biking
transportation
American Community Survey

Do better bike networks lead to more bike commuters?

After the sun sets, pedestrian fatalities spike

Vision Zero
walking
transportation
pedestrian fatalities
FARS

Pedestrian fatality data from 2001-2021 and how the time of fatal crashes varies over the day

Where are the 4+-car households?

American Community Survey
maps
transportation

A quick look at households with 4 cars or more.

Madison's largest temperature swings

Madison (WI)
climate

From 67 to 15 F overnight??

Comparing counts from Strava Metro and loop counters

Can Strava Metro data in Madison be a good indicator of overall bike traffic?

Population growth in Wisconsin

Wisconsin
population
map

Mapping population growth since the 2020 census

Winners and losers in bike mode share

American Community Survey
transportation
biking

Where did bike commuting grow, where did it shrink.

Quick post: Commute time in Madison

Madison (WI)
American Community Survey
transportation
quick post

How long does it take Madisonians to get to work?

#30DayMapChallenge: A "bad" map of the US

map

Places that start with "bad" (but not "badger"!)

Quick post: Job growth in Dane County

Madison (WI)
LEHD
jobs
maps
quick post

Some maps and charts of 2015 and 2019 LEHD data

The State of Biking in Madison 2022

Madison (WI)
transportation
American Community Survey
Eco Counter

A look at several indicators of how many people biked (and took other means of transportation).

`ntdr 0.3.0`: Now available on CRAN

transit
National Transit Database
ntdr

An R package for National Transit Database data

Rent and rent burden in Madison, Wisconsin

housing
Madison (WI)
American Community Survey

Some quick charts for Madison and how it compares to other US cities

Before and after the Metro Network Redesign

Madison (WI)
transit
GTFS
accessibility
r5r

Comparing transit accessibility with the r5r package

Understanding Raw and Adjusted Data in the National Transit Database

Madison (WI)
transit
National Transit Database

A comparison of Madison Metro ridership data released in the National Transit Database at different points in time.

Map fun with City of Madison tax parcel data

Madison (WI)
housing
map

Building age, property use, and architectural styles in Madison

Candidate questionnaires for local elections

Madison (WI)
Google Forms
Madison Bikes
RMarkdown
knitr

Using `knitr` and `RMarkdown` for formatting form responses

Bicycle and pedestrian intersection crashes in Madison

Madison (WI)
Vision Zero
map

A quick look at crash data to support efforts to no longer allow right turns on red.

Coffeeneuring Challenge 2022

coffee
map
biking

Making a map of this year's season

The color of roads

Madison (WI)
Dane County (WI)
map

What colors are most represented in the road names of Dane County?

#30DayMapChallenge: Restaurant heat map of Madison

Madison (WI)
map

Challenge 15: Food/drink

#30DayMapChallenge: 5-minute map

Madison (WI)
transit
map

5-minute isochrones around Metro Transit bus stops

What's the latest on commute mode share in Madison?

Madison (WI)
transportation
American Community Survey

Working from home has seen an unprecedented boom, while biking stagnates.

Wrangling unwieldy open records data

open records
purrr
RMarkdown

Using R, {msgxtractor}, and R Markdown to wrangle a set of msg files

How much housing is being built in Madison?

housing
Madison (WI)

A look at housing permit data over time.

How far can you go?

transit
map
Madison (WI)

Comparing how far you can travel by bus, bike, and e-bike in Madison, before and after the bus network redesign

Metro Madison ridership has not recovered from COVID

transit
Madison (WI)
time series
chart

A quick time series chart of Metro ridership going back to 2002

Boardings per bus per stop: A useful metric?

transit
Madison (WI)
map

A follow-up on a post on Metro bus boardings per stop in Madison (WI)

A Vision Zero Twitter Bot for Madison

Vision Zero
Madison (WI)
Twitter

Using R, the rtweet package, and GitHub Actions to automate weekly tweets about traffic safety

Do crashes have a history?

Vision Zero
map
Madison (WI)

What the locations of past crashes can and cannot tell us about future crashes

Where the shelter can't go: Using data to dissect city policy-making

housing
Madison (WI)
map

Policymakers proposed criteria for a where a shelter for homeless men in Madison (Wisconsin) could and couldn't go. This post uses public data to visualize these criteria, showing that in the end the resolution would have meant that the shelter can't go anywhere.

Scraping 4S

Web scraping and text analysis of the Society of Social Studies of Science's 2021 annual meeting panels.

Madison Common Council Advisory Referendum 2021

How precincts voted about the questions whether Madison Alder should be a full-time job and how long terms should be

Dane County Migration Flows

The `tidycensus` package got an exciting new function

Race demographics by aldermanic district

What are the racial demographics of Madison's aldermanic districts

Visualizing commute flows in Wisconsin

LODES provides origin-destination data for connecting work and home. This article looks at patterns in those flows in Wisconsin, and especially in Madison

Getting to work in Madison

Commute mode share by minority status and income

Bus boardings in Madison

Using the `mapdeck` package to visualize Metro Transit bus boardings in Madison (WI)

Transportation funding in Wisconsin remains car centric

A look at the 2020 Multimodal Local Supplement Awards in Wisconsin to assess how multimodal they really are

Some furter zoning analyses for Madison

A follow-up post on zoning and density in Madison and how it compares to other cities in the US.

How much of Madison allows only detached single-family housing?

Recreating a _New York Times_ analysis of how much of Madison's residential areas only allowed single-family detached homes

More articles »

Harald Kliems