2.5 billion cars could be clogging up the world's roads in 2050 – twice as many as in 2010. The volume of road-based goods traffic will also rise considerably between now and then. This presents a huge challenge to climate protection, as the traffic sector accounts for roughly one fifth of CO2 emissions and is thus of paramount importance in the struggle against global warming.
Greenhouse gas emissions are not the only undesirable side-effect of increasingly motorized economies. Especially in cities, the noise and air pollution (such as fine particulates and NOx) caused by vehicular traffic place a burden on the health and quality of life of many people.
Despite this downside to increasing traffic levels, it is undeniable that mobility constitutes a key human need and a prerequisite for the functioning of modern work-sharing economies. The question of how mobility can be made sustainable is thus of critical importance. Essentially, sustainable mobility is about minimizing emissions of greenhouse gases and reducing other damage to the environment caused by the growing volume of traffic. One key factor in reducing CO2 emissions from the transportation sector is capping dependency on oil, which is still the most important resource in the context of mobility.
These requirements determine how the lead market for sustainable mobility breaks down into the following market segments: alternative drive technologies, renewable fuels, technologies to increase efficiency, and the transportation infrastructure and traffic management.