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 …
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 …
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“. …
My First Data Art: NYC Taxi Defrag
In my data visualization NYC Taxis: A Day in the Life, there is a D3 chart at the bottom of the screen …
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 …
Should I Stay or Should I Go? NYC Taxis at the Airport
For the past year or so, I’ve ditched the lines at the airport taxi stands and taken an Uber. I compare …