Joseph Stromberg writes about science for Vox. He has recently written three articles about bike safety. First, he argues that "cyclists should be able to roll through stop signs and ride through red lights". Second, he argues that it should not be illegal to cycle without a helmet. "Let's start thinking of biking as a normal, safe activity, like walking — and helmets as an optional accessory for people who are really into it." Third, he looks at some data on the frequencies of different sorts of bicycling accidents in the US.
"Bicycle helmets do an outstanding job of keeping our skulls intact in a major crash. But they do almost nothing to prevent concussions and other significant brain injuries—and the very government agency created to protect us is part of the problem. The time has come to demand something safer."
“We are very good, but we want to be better,” said Brian Hansen, the head of Copenhagen’s traffic planning section.
In Bike-Friendly Copenhagen, Highways For Cyclists: 'Every day, one-third of the people of Copenhagen ride their bikes to work or school. Collectively, they cycle more than 750,000 miles daily, enough to make it to the moon and back. And city officials want even more people to commute, and over longer distances. So a network of 26 new bike routes, dubbed "the cycling superhighway," is being built to link the surrounding suburbs to Copenhagen.'
Lightlane builds lasers that shoot out from your bike onto the road, displaying a bike lane wherever you ride. Written about here and here.