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Travel times by matching vehicle license plates between consecutive checkpoints
with varying levels of instrumentation: tape recorders, video cameras, portable
computers, or automatic license plate character recognition [16].
Advantages
- Travel times from a large sample of motorists, very simple technique.
- Provides a continuum of travel times during the data collection period.
Disadvantages
- Travel time data limited to locations where observers or video cameras can
be positioned;
- Limited geographic coverage on a single day
- Accuracy of license plate reading is an issue for manual and portable
computer
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