Already ahead in ITS, Portland's 850 "smart buses" are equipped with Global Positioning System and Automated Vehicle Location technology.

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The latest generation of Opticom gear does away with infrared in favor of a combination of cellular radio and Global Positioning System links, which can pinpoint a vehicle's location and speed.

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It uses a vehicle-mounted camera, object-recognition software and satellite positioning to create detailed 3-D maps of roads, pinpointing features such as pot-holes.

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Dutch thinks the real selling point is Networkcar's global positioning system, which allows owners to locate a stolen vehicle or even monitor the location and performance of the family car using a Web site.

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Montri plays with a hand-held Global Positioning System (GPS), pressing the buttons to work out where his vehicle is on planet earth.

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