"The group—calling themselves the Reasonably Polite Seattleites—wanted to make a statement about how easy and affordable it would be for the city to use the method to make bike lanes safer all over the city. To stress how polite they are, they attached them using an adhesive pad for easy removal, according to an email sent to SDOT and Seattle Bike Blog."
Read the full article:
http://www.seattlebikeblog.com/2013/...cherry-street/