With the introduction this year of applications that turn cellphones into GPS road monitors, traffic alerts may finally begin to work as advertised as more people transmit data into the system.
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Automated road information used to come only from a few thousand sensors on major highways. Then, to increase the flow of information, traffic reporting companies like Inrix and Traffic.com received data from commercial fleet vehicles and outfitted with two-way transmitters. But those vehicles traveled only major roads and tended to avoid rush hour. “Generally, commercial fleets attempt to avoid traffic,” said Howard Hayes, a vice president at Navteq, which owns Traffic.com.Traffic reports coming in at 2 a.m. did little to help commuters and holiday travelers, he said.
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People are signing up for the free apps from Waze, Aha Mobile, Traffic.com, Inrix and Google traffic, whose applications use GPS tracking to turn cellphones into traffic reporting devices. In return, drivers get free traffic reports.
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