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This present paper offers a review on some of the latest automated traffic data
collection technologies.
This automated technology briefly summarizes as two methods.
The first technology is in-situ technology and second one is in vehicle
technology.
Broadly speaking, ``in-situ'' technologies refer to traffic data measured by the
means of detectors located along the roadside.
Generally, traffic count technologies can be split into two categories: the
intrusive and non-intrusive methods.
The intrusive methods basically consist of a data recorder and a sensor placing
on or in the road.
Non-intrusive techniques are based on remote observations.
Then the next order automated traffic data technology is floating car data
(FCD).
FCD is an alternative or rather complement source of high quality data to
existing technologies.
They will help improve safety, efficiency and reliability of the transportation
system.
They are becoming crucial in the development of new Intelligent Transportation
Systems (ITS).
Then finally discussed travel time prediction by these technologies.
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