Building Static Vector Tile Trees from GeoJson
On my team at the NYC Department of City Planning, we have been working with vector tiles and mapboxGL to create fast …
Next Generation FOSS Web Mapping with MapboxGL
Hi Internet, it’s been a while. I’ve been hard at work building web mapping tools for NYC’s City Planners, and have recently started …
Introducing PostGIS Preview
I’ve been working with PostGIS quite a lot lately, and found myself faced with the problem of being able to easily visualize …
Liberating Data from NYC Property Tax Bills
Property Tax constitutes the single biggest source of revenue for the New York City Government, accounting for approximately $22.5 Billion dollars in …
Building Urban Scratchoff
Last week, I shipped a just about finished version of Urban Scratchoff, a simple map app that lets you explore two different …
This Ugly Map Got a Lot of Attention Today
Be careful what you release into the wilds of the internet! A few days ago, mostly out of curiosity, I created the …
A Chrome Extension to Inject NYC Subway Data into streeteasy.com
I love streeteasy.com. The site has everything for the NYC apartment-seeker: High quality listings, uber-granular searching, discussion forums, and lots of great …
Building a Custom Downloader for NYC’s PLUTO Data
I recently launched a custom download tool for NYC’s PLUTO data, which you can check out at http://chriswhong.github.io/plutoplus. Here’s a little bit …
Anatomy of a Civic Hack: Freeing Baltimore’s Real-time Bus Data
This morning, the appropriately named transit app TransitApp released a blog post on medium, entitled “How we saved Baltimore $600,000 in one day“. …
FOILing NYC’s *Boro* Taxi Trip Data
This one’s going to be short and sweet. A couple of weeks ago, a contact at the TLC informed me that the …