Thursday, May 21, 2009
Tuesday, May 12, 2009
The Old Streetlamp of the Past Gets Updated for a Green Future - WSJ.com
The Old Streetlamp of the Past Gets Updated for a Green Future - WSJ.com: "
By REBECCA SMITH
Streetlights were the first big users of electricity. Now, they are being re-engineered to improve efficiency, but at a cost that today's municipalities might have a tough time covering.
San Jose, Calif., in the heart of Silicon Valley, is testing a concept called 'adaptive lighting,' in which streets can be made brighter, darker or even be illuminated with flashing strobes upon command.
By summer, the city will have installed 125 streetlamps using LED technology, in one of the biggest urban tests of the science so far in the U.S. The city hopes to cut down on energy use, and, hopefully, lower its utility costs, by tapping LED lighting's greater flexibility.
The test in San Jose coincides with a broad push by federal and state agencies to modernize the nation's lighting infrastructure. Many homes and businesses have replaced incandescent bulbs with more efficient compact fluorescent lights. Now cities, faced with tighter budgets, are looking for ways to cut street-lighting costs and to reduce emissions from power plants."
By REBECCA SMITH
Streetlights were the first big users of electricity. Now, they are being re-engineered to improve efficiency, but at a cost that today's municipalities might have a tough time covering.
San Jose, Calif., in the heart of Silicon Valley, is testing a concept called 'adaptive lighting,' in which streets can be made brighter, darker or even be illuminated with flashing strobes upon command.
By summer, the city will have installed 125 streetlamps using LED technology, in one of the biggest urban tests of the science so far in the U.S. The city hopes to cut down on energy use, and, hopefully, lower its utility costs, by tapping LED lighting's greater flexibility.
The test in San Jose coincides with a broad push by federal and state agencies to modernize the nation's lighting infrastructure. Many homes and businesses have replaced incandescent bulbs with more efficient compact fluorescent lights. Now cities, faced with tighter budgets, are looking for ways to cut street-lighting costs and to reduce emissions from power plants."
Monday, May 4, 2009
Cycle Tracks: Lessons Learned
References on Cycle Tracks which are being recomended in downtown on Higgins and Broadway.
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