I am quoted in this article Smartphone apps are changing the way riders hail taxis by Katie Humphrey
“When you go to most cities, there are many different taxi providers and it’s hit-or-miss how reliable any of them are,” said David Levinson, a professor at the University of Minnesota who studies transportation. “It’s easier to download an app than to look up a telephone number.”
Guangqing Chi has a new website devoted to Land Developability:
“Land developability is a measure of land availability for future conversion and development in a geographic entity, such as a state, a county, a city, a census tract, or other geographically aggregated units. The land developability index is generated using spatial overlay methods based on data layers of surface water, wetland, federal/state-owned land, Indian reservation, built-up land, and steep slope, which are all seen as undevelopable. The land developability index can be used for regression modeling when land use and development is a consideration of an analysis, for detecting potentials for land conversion and development, and for predicting the direction of future land use and development.”
This looks like a very useful piece of research data infrastructure.
Posted with Blogsy
David Levinson, Transportist 
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