What can be done to reduce the number of traffic jams?
The only thing that can help is to reduce the number of vehicles, or at least not to increase that number yet further. This works if other means of transport are available. Public transportation in particular might be the solution here. Companies need to heavily invest in this area. Furthermore, the existing means of transport are not networked sufficiently.
Where does the challenge lie in relation to the intelligent networking of traffic?
If we talk about automated mobility, I see a problem in the traffic mix, because automated vehicles will be traveling alongside vehicles with human drivers. Since self-driving cars act defensively, estimates indicate that the flow of traffic will slow down by 20 percent. This situation changes once the vehicle population consists almost entirely of self-driving cars. At this early stage, I would not expect any miracles from autonomous driving.
What can be done to alleviate urban congestion?
Here too, I view the massive expansion of local public transportation as the best way forward. A few municipalities have already begun offering local public transportation free of charge. The success of intermodal traffic models, in particular those involving a change from private passenger cars to the S-Bahn suburban train services for commuting purposes, depends to a large extent on the availability of park-and-ride car parks. However, many urban centers still lack this parking capacity.