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Google's Taxi-Driver Software to Guide You Through Jams to be Available Soon
Initial tests of a virtual cab driver have suggested that it could shave over 10 per cent off journey times through crowded urban streets, reports New Scientist.
The system, known as T-Drive, starts by monitoring the routes taken by cabbies at different times of day.
To test their idea, the researchers used three months of movement data, representing 400 million kilometres of travel, from a fleet of 33,000 taxis in Beijing.
The taxi trajectories were merged to reveal the roads that cab drivers prefer. Given a request to navigate between any two points in the city, the system could then choose a route based on the roads that are popular with cabbies at that time of day.
For a real-world test, the Microsoft engineers asked a pair of drivers to travel between two locations in Beijing: one was given a route suggested by T-Drive, the other used Google Maps.
Averaged over 30 trials, the two systems produced routes that were roughly the same in length. But T-Drive seemed to know how to avoid stoppages: it produced average drive times of 23 minutes, almost 4 minutes faster than Google Maps.
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