Abstract
The article introduces a method to evaluate and develop quality of sustainable mobility planning in European cities. This tool has been worked out by a European Consortium of experts representing 14 countries in Europe. The author - as the Hungarian member and auditor of the Consortium - participated in the project working as an auditor in four Hungarian cities, leading them through the process of the QUEST-method and helping the cities to develop a systematic way of planning sustainable mobility. In the article the process will be shown, advantages, lessons learned, drawbacks and possible future development of the method will be explained.