A Standard Experiment: How to determine present day efficacy
the experimenters and their practices are to be recorded.
Recommended for such an experiment is an independent observer who can count passing traffic while the experimenter hitch-hikes from a discrete position, and a standard tally counter to aid in reliable traffic counting.
Conclusion
I hope one summer soon to run just such an experiment in Tasmania. I would like to encourage others in other places to do the same. It would involve three people ideally, a male and female thumber and a traffic counter, time keeper, coordinator. A perfect college experiment producing a nice paper. Let's see it happen.
Footnotes:
1. Occasionally a bus, taxi, police car, ambulance or fire engine may offer a ride (I have hitched rides with all these bar the fire engine myself), and this will be counted. On the whole it is safe to say that they are not in a position to offer rides to hitch-hikers and various experimenters made similar assumptions in their counting.
2. Dense and sparse are subjective decisions based upon the assessment of on-site of traffic's ability to cross the outside lane(s) to pull over on the curb.
3. But well documented in the experimental report.
4. Of the driver offering the ride, not all passing drivers.
5. Of the vehicle which pulled over, not all passing vehicles.
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