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  • Those rows of white Toyota Priuses with San Francisco municipal logos on the side will be a thing of the past by 2027, with city workers instead using vehicles from car-sharing services like Zipcar or City CarShare. At least that's the proposal being introduced Tuesday by Supervisor Mark Farrell that would phase out passenger vehicles and light-duty trucks in San Francisco's city fleet over the next 13 years and replace them with contracts with private car-sharing companies.

    SF Chronicle
  • In an unprecedented view inside a working lithium-ion battery, researchers used a neutron beam to "see" the flow of lithium in real time, as the battery charged and discharged. What they saw could one day help explain why rechargeable batteries lose capacity over time, and why they even sometimes catch fire.

    Science Daily
  • With the recent news that Bicycling Magazine has named New York America’s best city for biking, this seems like a particularly good moment to share the very first time protected bike lanes were mentioned in The New York Times. It happened on October 10, 2004, in a letter to the editor from a man named Kenneth Coughlin. 

    Streetsblog USA
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    ...So much time has passed since the law was signed a year ago, after five vetoes in previous years, that some drivers might have forgotten about it, especially a key component. It becomes law Sept. 16. The version that will take effect does not allow drivers to cross a double-yellow line to pass. If they can’t abide by the new 3-foot rule, they must slow to “a safe and reasonable speed” when passing. Vetoed versions of the bill allowed drivers to cross double-yellow lines to pass bikes at a safe difference.

    SF Chronicle
  • University of Utah researchers are getting a better picture of Utah's air quality thanks to mobile sensors. The launch of the new project this week follows two seasons of poor air quality on the Wasatch Front. In the winter, particulate matter gets trapped in the ugly inversions that we see. In the summer, ozone is the problem.

    Deseret News
  • There is something that the Chinatown community desires more, and has less of, than housing. Open space.

    SF Examiner
  • Q: Oh Mr. Wizard of all things traffic, I ask of you, with the new law stating I have to stay three feet away from bicyclists, how am I supposed to do this when they ride four abreast on a two-lane street, ignore stop signs, don't wear helmets and just ignore rules and regulations. I can be cited but they go unabated?

    Mercury News
  • Schor-1.jpg

     What makes the Prius so fuel efficient? The hybrid drivetrain is a big part of it, yes, but put that into a box on wheels like the Mercedes-Benz G-Wagen or even a Kia Soul and it’s not nearly so helpful. The Prius can deliver 51 mpg in no small part because Toyota engineers toiled tirelessly at their computers and in the wind tunnel to ensure it slices through the air as effortlessly as possible. Yet compared to the Schlörwagen, a German experimental vehicle from 1939, the Prius is a brick.

    Wired
  • A study of air pollution reduction measures over the past ten years in Taiyuan, China, shows more than 50% of health costs associated with loss of life and disability have been saved as a direct result of the regulations’ implementation. 

    Buildings
  • ...For the most part, the people who run the New York City's myriad transportation organizations still haven't figured out how to deal with the most important, most obvious innovation in transportation: the smartphone...While cities and transportation regulators have released data and encouraged innovation through contests andhackathons, no U.S. city has aggressively pursued development of an integrated app that enables users to plan, book, and pay for trips across multiple travel modes. Instead, it's the likes of Uber and Google Maps and CityMapper and RideScout that have demonstrated what is possible, and controlled the movement market to date.

    CityLab