On Fri, 30 Mar 2018 12:23:13 -0400, Frank Krygowski
wrote:

https://www.bikebiz.com/news/hivis-compulsion-study

Chuckle. On the same page that the researcher reports that:
https://www.sciencedirect.com/science/article/pii/S2214140518300045
- A bicycling visibility aids law had no influence on bicycle crash.
- A bicycling visibility aids law had no influence on proportion
of bicycle crash.
- The law did not produce immediate effects, nor did it have
any effects over time.

is a link pointing to this article with the opposite conclusion:

"Randomized trials and self-reported accidents as a method to
study safety-enhancing measures for cyclists - two case studies"
https://www.sciencedirect.com/science/article/pii/S0001457517302543
A large number of studies show that high visibility in
traffic is important in the struggle of getting the attention
from other road users and thus an important safety factor.
Cyclists have a much higher risk of being killed or injured
in a traffic accident than car drivers so for them high
visibility is particularly important. A number of studies
have examined the effect of high visibility, such as
reflective clothing, but most studies have been primitive,
the data limited and the results very uncertain.
(...)
A main result from Table 4 is that there were 38% fewer
multi-party personal injury accidents in the treatment
group compared to the control group, and that the difference
is statistically significant (p 0.05).

Perhaps someone should design a reversible safety vest. One side
would be a bright and reflective color designed for maximum
visibility. The reverse site would be in some form of camouflage, for
those days when one does not feel like being a target for road rage
infected motor vehicle drivers.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558