Cycling is a form of land transportation with the use of a bicycle which is a vehicle powered by human force. Most countries worldwide nowadays have traffic regulations which classify bicycles as transportation medium or a vehicle making a cyclist an equal traffic participant. There are legal regulations which provide the necessary age of the driver (cyclist), rules of driving on public roadways, the technical demands of the bicycle, etc. Trafficking of bicycles is, compared to other forms of transportation (e.g. automobiles), far less dangerous for the environment, with the bonus fact that it has a positive effect on the health of the people driving bicycles. Many cities ensure that cyclist have a special infrastructure, making the trafficking of bicycles safer and easier.The existing traffic network in Croatia is designed and performed in a way that motor vehicles have the primary role - especially automobiles and public transportation. The portion of cyclists in public city transportation is substantial, and especially in rural areas where it holds a long tradition. With investments in construction of cycling infrastructure and working on educating citizens about the possibilities of using more acceptable forms of transportation (considering energy, ecology and finances), cycling is continually showing a positive growth trend.