The Pop-Up City: In order to improve traffic safety for bicycle riders, Mykle Hansen created the so-called Speed Vest. The Speed Vest is a piece of clothing that indicates the speed of a bicycle rider on his or her back. This way other traffic users, such as car drivers, can take bicycle riders into consideration more easily.

The Pop-Up City:

In order to improve traffic safety for bicycle riders, Mykle Hansen created the so-called Speed Vest. The Speed Vest is a piece of clothing that indicates the speed of a bicycle rider on his or her back. This way other traffic users, such as car drivers, can take bicycle riders into consideration more easily.