What is "Green ITS"?

Information and communication technology (ICT) for transport, commonly referred to as Intelligent Transport Systems (ITS) can make a significant contribution to improving energy efficiency and reducing CO2 emissions from the transport sector.

So-called green ITS applications and services are specifically designed to reduce energy consumption and polluting emissions, for example, eco-adapted traffic management strategies, green routing or access restrictions based on environmental criteria ("green zone").

However, many intelligent transport systems developed with other primary objectives (e.g. improving traffic efficiency or enhancing safety) may also have an impact on emissions: applications aimed at optimising travel time have an indirect impact on fuel consumption, even if fuel efficiency is not the primary optimisation criteria. The use of telematics can also significantly influence fleet operating cost (fuel expenses), while fuel economy also leads to CO2 reduction.

Such ITS applications are often made possible through the deployment of cooperative systems. These systems exploit the potential of both vehicle-based and roadside sensing technologies to gather detailed information about the driving environment, traffic behaviour and individual vehicle trajectories. In the context of CO2 reduction, cooperative systems can be considered as "enablers" for green versions of ITS applications, as the information can be targeted more precisely than for example, through variable message signs or radio broadcasts, and can thus affect driving behaviour in rapid response to changing environmental or traffic conditions.