TRAFFIC DATA ACQUISITION
Traffic Data Aquisition System
The TRAFfic Data Acquisition System (TRAFDAS) is a low-cost traffic
counter which works with treadle or pneumatic tube detectors.
It is different to the other detectors in a number of key areas:
- Number of Channels. TRAFDAS will handle up to 8 pairs
of detectors at once.
- Cost. TRAFDAS costs less than competing systems which
only allow for 1 pair of detectors.
- Software. TRAFDAS comes with sophisticated software
which does everything from correcting missed observations to matching
vehicles at different pairs of detectors on the same section of
road, to performing speed-volume analyses on two-lane highways.
- Flexibility. TRAFDAS can be easily customised by the
user to handle any vehicle classification system.
TRAFDAS works by storing the raw time of an observation to an
accuracy of 0.625 ms. The raw data are downloaded to an IBM compatible
PC and processed to determine speeds, headways, axle spacings,
vehicle classifications, etc.