pe -

This is called "vehicular cycling." This makes a lot of sense too, because most of the streets in this country are designed for cars, and obviously cars and bikes are very similar--apart from the weight, and the number of wheels, and the means by which they're powered, and the speeds at which they travel, and the number of passengers they carry, and the vulnerability of the operator, and the dangers they pose to pedestrians. Other than those minor things, they're pretty much identical--I mean, they sell red cars, and they sell ride bikes, and both cars and bikes have wheels, so why not just keep the streets "One size fits all," right?