Congestion has many potential causes and improving mobility helps mitigate the problem. Reducing congestion means reduced delay, more predictable and lower trip times, lower travel costs and reduced emissions.
The first option to be considered is to make better use of existing infrastructure as they are usually most cost-effective, are flexible in being tailored to each particular situation, can be implemented rapidly and provide publicly visible changes.
Quick clearance of traffic incidents has the potential for considerable reductions in congestion. Attention to traffic flows at road works sites is also important.