There are several different cycling campaigns going on all over the world all the time. Campaign's idea is to make people to cycle instead of using cars or other polluting vehicles. Usually the organizer of the event is a town or city, company, sports team or other public community. The main idea is good and simple, but the problem is how to reach all the people over the target group and advert the campaign through the campaign time. The attendees and the target group members don't use the same routes or even travel at the same time, so it's hard to reach everybody within large area.