As you know (and noted in your later post, thanks), the cluster around 3 degrees wasn't a result at all, but a simple artifact of the experimental design, so the fat tail was indeed the main
noteworthy result of the
experiment.
Funded in park by Clif Bar and People for Bikes, the
experiment will include, in its last three days, an extension of the 15 - foot path for a few blocks further northward and creation of a bi-directional bike lane to test it
as a possible fill - in to a
noteworthy gap in Portland's bike network.