Archive | Environment

Chart of the Day: Costs of Urban Travel by Mode

Here’s a chart from an wonky, slightly-old, provocative book called Transportation for Liveable Cities by a Pennsylvania transportation professor named Vukan Vuchic. It shows Vuchic’s estimates of the total costs for different travel choices in a dense urban city, showing a peak-hour car trip with tolls and parking, an off-peak car trip without those costs, a typical […]

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Map Monday: The Twin Cities’ Urban Heat Island

With this cold snap bringing temps into –15º territory, I was reminded that a few weeks back I posted Minnesota’s Carbon Donut, a map showing which parts of the state of Minnesota have households contributing a larger carbon footprint. With current temps it is probably worth a map on the urban heat island of the Twin Cities. In September, 2015, The Journal of Applied […]

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Map Monday: Minnesota’s Carbon Donut

I love interactive maps and one got my attention recently. Christopher M. Jones and Daniel M. Kammen at UC Berkeley published a study in 2013 taking data on household carbon footprints to develop carbon profiles of zip codes, cities, counties, and states. They took the carbon profile data and produced an interactive map of the […]

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Chart of the Day: CO2 Emissions vs. Cycling Modeshare

Here’s a chart from a recent study by the Institute for Transportation and Development Policy (ITDP), a big International thinktank, about the relationship between CO2 emissions and bicycling modeshare (i.e. the percentage of people who use one mode of travel vs. another). They ran two scenarios about how urban bicycling could affect greenhouse gas emission. […]

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Map Monday: Urban Heat islands of the U.S ranked

A doctoral student at the UGA, Neil Debbage, led a study trying to determine with urban forms affected urban heat islands the most. The study also ranked the urban heat islands of the U.S. Researchers found no one size fits all urban model where the advice to build more dense or build more sprawling would solve […]

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