UNECE celebrates the 50th anniversary of Vienna Conventions on Road Traffic and on Road Signs and Signals, 1968-2018. At the turn of their 50th anniversary, the Vienna Conventions on Road Traffic and on Road Signs and Signals from 1968 are more relevant than ever. Whether helping to address the most critical road safety needs, or facilitating the development of automated driving functionalities, reference to these legal texts, which are evolving with technological developments, is a necessity for countries around the world. The two Conventions have a global scope and are important frameworks facilitating international road traffic through uniform traffic rules and harmonized road signs, signals, symbols and markings.