ITS World Congress 2021 Companies Awards Career Contact Report fault DE EN Home page ITS World Congress 2021 Solution concepts HaRaZäN HaRaZäN is an abbreviation that stands for Hamburg bicycle traffic counting network. Privacy settings This site uses website tracking technologies from third parties in order to offer their services, to continuously improve them and to display advertisements in line with the interests of the users. Data protection imprint more Powered by Usercentrics Consent Management Reject Accept everything