Filed under: Uncategorized | Tags: geometry, infrastructure, neighborhood bikeway, roundabouts, speed, speed humps, street design, traffic calming, vertical deflection
Of course there are several different types of vertical deflection, with variable effectiveness. The most effective are taller and steeper. The least effective types are most in vogue for reasons you can probably guess. Sorry I don’t have the source for this in front of me.

P.S. One speed hump costs about 2K$, roughly 1/8 the cost of a mini roundabout. By all indications they are far more effective traffic calmers than are mini roundabouts.
Filed under: Uncategorized | Tags: 1984, Alan Lim, Amgen, ball patch, blood bags, blood doping, blood packing, Boulder, caffeine, Chris Carmichael, Contador, cortisone, David Millar, doping, Eddy B, EPO, Ferrari, Festina, Festina Affair, Floyd, Floyd Fairness Fund, Floyd Landis, Garmin-Slipstream, Greg Lemond, Hein Verbruggen, hematocrit, juan pelota, Lance Armstrong, Landis, Levi Leipheimer, Moninger, Moreno Argentin, Moser, Och, Orpah, Pantani, PDM, pig hormone, Puerto, Rebecca Twigg, Riis, Schlecks, speed, synthetic hormone, Tailwind sports, Testa, testosterone, Thom Weisel, Tommy D, Tugboat, Tyler Hamilton, UCI, Vaughters, Verenque, Wiggins
Not necessarily a positive activity in which to involve oneself.
Bike riding, however, is still the best.