Real-Time Traffic Routing from the Comfort of Your Car
Posted: September 9th, 2006 | 2 Comments »Real-Time Traffic Routing from the Comfort of Your Car reports on TrafficAid, a traffic mapping system developed by IntelliOne, that identifies congestion in real time using cell phone location provided by GSM operators. The measurement system processes thousands of device locations per second, “snaps” each device to the road network, and monitors movement for a short period of time. Multiple devices moving along the same roadway in the same direction are aggregated to generate an average speed for the roadway between points (road segments).
Relation to my thesis: The system must rely on the amount of sensors (i.e. cell phones and GSM towers) in order to give precise and accurate congestion location (road segment) and traffic speed information. I suspect it does not work with the same reliability on roadways, highways and rural areas. Therefore I find the following claim of ubiquitous reliability rather doubtful:
Unlike traditional GPS navigation systems that depend on 511-type information, TrafficAid updated much more quickly and accurately represented traffic speeds to within 3-5 miles per hour at any given location.
I am wondering if the system renders the uncertainty of the information delivered.
Similar systems using real-time RF data include Mobile Phone Based Radio Meter, Real-Time Maps of Wireless Internet Use, and Real-time Rome.
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