The Center for Neighborhood Technology has updated its interactive region-comparison website to show data comparing carbon dioxide emissions around the Houston region. The Housing + Transportation Affordability Index now allows you to compare CO2 emissions — from “household vehicle travel” only — on side-by-side zoomable maps.
The 2 new data sets available show CO2 emissions per acre (at the top above), and CO2 emissions per household (directly below that) from household auto use. The Houston-Galveston-Brazoria region is one of 55 U.S. metropolitan areas mapped on the website. The center’s point?
When measured on a per household basis, it found that the transportation-related emissions of people living in cities and compact neighborhoods can be nearly 70% less than those living in suburbs.
The center figures that transportation accounts for 28 percent of all greenhouse gas emissions in the U.S.
Other H+T map tools focus on how affordable different locations are to live in — when you take transportation costs into account:
One preset on the site compares projected annual household gasoline expenses, using 2000 and 2008 data. A more interesting one compares housing costs across the region with combined housing-and-transportation costs:
But the real fun begins in the last section, where you can build your own comparisons of a couple dozen different sets of data, including the number of autos per household, household density, travel time to work, average monthly rent, and housing and transportation costs as a percentage of income for owners and renters.
Our sample setup, where we’ll hunt carefully for geographical correlations between autos per household and average block size:
What do you find when you zoom in?
- H+T Affordability Index [CNT]
- New Maps Show that Urban Living Helps Curb Global Warming [CNT]
- Area outside Beltway 8 contributes most per capita carbon emissions [Houston Tomorrow]
Maps: H+T Affordability Index