Tired of cars passing you too closely while bicycling at night? Some designers have created a system to project your own bicycle lane on the street behind you, using lasers. Tip: Martin.
From the picture (left above), these lines don’t seem to be three feet from the cyclist, however. The law in DC (as of December) and in many other places requires three feet. What about combining this laser idea with Joe Mizerek’s “3 Feet Please” bike jerseys, and projecting lines three feet to either side of the cyclist, with the words “3 feet please”? Then motorists can be sure of the safe distance to pass.