I create tools and data visualizations using transportation data. Most of the projects shown here use data and APIs from Capital Bikeshare and WMATA.
I work with many APIs: Google Maps, Google Places, WMATA, Yelp, the USDA farmers markets API, Meetup, Twitter, Flickr, and Interchange by Kaiser Permanente, as well as XML feeds from Capital Bikeshare and Citi Bike.
I consult with Mobility Lab and TransitScreen, and also run the Transportation Techies Meetup group.
My blog is at mvjantzen.com/blog.