Parking spaces and the possibility of parking vehicles presents an important component in the transportation system, because vehicles have to be parked somewhere, regardless of the reason they began their trip. On-street parking in the city of Zagreb, when looking at the overall picture, presents one of the biggest traffic problems. This thesis, which is elaborated through four basic chapters, will offer some solutions, presented in the form of strategies for improving on-street parking. Through examples of European cities, mechanisms will be presented, that gave the urban areas an opportunity to develop quality traffic policies. The proposal of strategies for improving on-street parking, which can be found in this thesis, have been established by analysis of on-street parking in the city of Zagreb. The analysis consists of the review of the current status in Zagreb, examples of parking implementation, and the parking policies and traffic models analysis. Given solutions, whose goal is to improve on-street parking, are directed at reducing the use of private vehicles. Apart from the adept traffic methods (carpooling, carsharing and the public system of bicycle transportation), more economical solutions are provided, such as revision of traffic taxes and sub-zoning.