Boingo
Comfortably road numb
So, based on my reading of this study at least, which admittedly was not an in depth hours long reading, I come to the conclusion that the evidence backing up the assertion that headlight modulation is beneficial is tenuous at best, and that all the other strategies tested (bright clothing, bright helmets, and bright lights) are far more effective.
If anyone cares to read the entire study more carefully, perhaps they will find something I missed.
Thanks Dave,
Without a doubt, you put much more time in reading the study than I did. Looking back, my primary purpose citing this study was to counter mistercincy's assertion that "no objective study has found them effective". Very petty of me, but it was objective, a study, and it found them effective. I would not dare defend the data (without more information), and therefore can't vouch for the study's conclusions. However, in my objective and exhausting study, I have noticed a huge difference in the before and after. The violations of personal space with driveway pullouts, left turns, u-tuns, lane changes and lane splitting dropped significantly. Now I realize that the statistical significance with a sample size of one is low, but it is all I got.