Bulgaria, Greece and Serbia have agreed to develop an experimental 5G cross-border corridor that will allow for the testing of driverless vehicles, the European Commission said on Tuesday. The three countries signed a letter of intent at the Digital Assembly 2018 in Sofia to work together on the Thessaloniki – Sofia – Belgrade corridor, which will provide a technologically neutral hub for industry, research centers, academia and any other stakeholders for testing and evaluating innovative mobility technologies, the EC said in a statement. By signing the letter of intent, the countries have agreed to start assessing existing and upcoming technologies in the field of connected and automated driving; analyze opportunities and positive externalities of the deployment of automated and connected vehicles; foster the use of connected and automated vehicles in order to optimize the impacts on mobility; raise public awareness; and work jointly towards coordinated policies and regulation of automated driving. This new agreement builds on a number of previous ones between a number of European countries, and underlines that a pan-European network of 5G corridors is now emerging.