On 5/13/2019 3:34 PM, James wrote:

snip

The national cycling participation survey that is conducted every 2
years since 2011 (2011, 2013, 2015, 2017) shows a statistically
significant decline in participation.
https://www.cycle-helmets.com/ncp-2017.pdf

The Australian participation study states "Participation is defined as
the number of individuals who have cycled for any journey or purpose and
in any location over a specified time period." They aren't measuring
distance traveled.

I suspect that Australia mirrors many other countries where there is a
marked increase in both bicycle commuting and longer recreational rides,
but a decrease in the absolute number of riders that they could count.
It's surprising how many people have a garage with a bunch of bicycles
that have been sitting unused for years, and may be taken out for a
short ride very infrequently.

I recall one "survey" that was doing actual counts of riders and they
intentionally derated their count because they said that they didn't
want to count riders who were passing by the counting point if they were
on an organized ride. Then they used the derated count to proclaim that
the lower number of riders was due to a helmet law. It's bad enough to
try to draw unsupported conclusions from actual data, but it's worse to
draw unsupported conclusions from fabricated data.

Be very careful when reading any "studies" referred to on
cycle-helmets.com, that site has no credibility.