The Way Forward For Traffic Tracking

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You are in a shrinking minority of the American inhabitants when you don’t own at least one digital communications device. There are greater than 119 million cell-telephone customers within the United States as of July 2001. Each day, thousands more join. Millions extra have two-manner pagers. The radio alerts emitted from these gadgets can reveal our location at anytime. This potential to find cell-telephone users will turn out to be an important element of future visitors-management techniques. On a brief stretch of highway in Calgary, Alberta, Cell-Loc is testing out its new cell-telephone tracking know-how. In July 2001, the company despatched a known vehicle down a 1.25-mile (2-km) part of a significant freeway, by means of the guts of the city, to check the accuracy of its system. The truck carried a GPS receiver onboard to compare the system’s accuracy. "We collected data from each the GPS receiver within the car, and from our system that was monitoring the cellular phone remotely, and we in contrast the two and found them to be, not equivalent, but close enough for our functions we’re talking about," Andrew Hillson, Cell-Loc’s director of service expertise, iTagPro said.



Listening posts are placed throughout a metropolis, either subsequent to a cell-phone base station or iTagPro Product in impartial areas. Listening posts are comparable to half a base station: They'll detect however not transmit radio indicators. Three listening posts are wanted to get a two-dimensional position of a cell-phone person. Listening posts detect cell-phone transmission, decode it after which time-stamp the arrival of a wavefront from the transmission. Once three towers have time-stamped a transmission, the data is rapidly sent to a central computer that uses hyperbolic multilateration to find out the cell phone’s position on a highway. "Hyperbolic multilateration" is only a fancy method of saying triangulation, Hillson said. A position is set by locating the intersection of the hyperbolas from the radio waves detected by the listening posts. By analyzing how lengthy it takes the radio wave to achieve the listening submit from the mobile phone, iTag Pro a pc can calculate almost precisely the place somebody is positioned on the highway. If the person’s location on the map is proven as off the freeway, the pc corrects for this and snaps the situation to the road. All the strategy of detecting a person’s place occurs in seconds. Hillson stated that Cellocate meets the FCC’s mandate and is correct inside 330 ft (a hundred m) 67 percent of the time. Within 990 ft (300 m), the system is correct ninety five percent of the time. It supports AMPS(Advanced Mobile phone System) and CDMA (Code Division Multiple Access) air interfaces. Cell-Loc is pursuing partnerships with cell-cellphone service suppliers. The service, which might permit cell-telephone users to receive prompt, personalized traffic warnings, iTag Pro will possible be accessible in a 12 months or two and price about $four or $5 monthly.



"Drive and save" applications are nothing new. Progressive launched their Snapshot program in 1998. Since then State Farm, Allstate, Liberty Mutual, and Nationwide among others have rolled out related programs to track driving habits and reward drivers with secure driving reductions.