Congestion is plain frustrating. It’s expensive, and it places an enormous strain on the environment, on cities, and on the people who live and work in them. But there’s a way out; Transport Engineers all over the world are coming up with ways to tackle the causes of congestion, clear the clog and re-instate flow, as Xerox states:
1) Road capacities are maxed out; it is needed to invest in public transport and discouraging car ownership and driving (more roads don't mean less traffic)
2) No real alternatives to driving; there is a clear need to encourage alternative modes of travel
3) Cash-based toll collection; introduce all-electronic open road tolling so traffic can flow better (I would rename this as embracing technology)
4) Driver behaviour; in dense traffic, congestion can happen for no obvious reason, so variable speed limits are an effective way to regulate traffic dynamically (I would call this as Intelligent Transportation Systems; ITS)
5) No priority for public transport;
6) Traffic signals aren’t optimized; time to adjust dynamically traffic signals
7) Drivers looking for parking spaces; it is time to adopt dynamic pricing and customer apps.