Jon Bruner profiles Los Angeles Department of Transportation Engineer Edward Yu, and the ATSAC system run by Yu and his team, which controls the timing of traffic lights at each of the city's 4,114 intersections.
Apple stores are great revenue generators in cities, writes Brian Caulfield, but not just as a one-off. Customers tend to come back for more products and repairs, and the stores themeslves encourage plenty of cross-shopping nearby.
California has 7 of the 20 cities with the poorest air quality, according to a list complied by Forbes. Bakersfield, which has 60 days of unhealthy air a year, takes the top spot for its hot and dusty weather and proximity to oil fields.
In early 2012, Facebook will launch a yet-to-be-named app that will allow 800 million users to access home energy usage information provided by their utility company. This 'Social Energy Application' will help users manage their energy.
The Solar Energy Industries Association (SEIA) is fighting with Congress to extend a popular federal incentive program. Set to end on December 31 this year, the group states that the program could create 37,400 more jobs and add nearly 500 megawatt.
Forbes Magazine picks 15 of the most stressful cities in the United States. To come up with the data, "we analyzed quality-of-life data from the 40 largest metropolitan statistical areas," says Beth Greenfield.