Traffic control
Vehicles are considered one of the main contributing sources of greenhouse gas.
As of 2016, the World Resource Institute’s Climate Data Explorer showed that road transport causes around a 15% of all carbon dioxide emissions.
Vehicles consume greater amounts of fuel when they are constantly accelerating and braking in traffic jams. The optimum speed for low fuel consumption and low emissions is between 45 and 65 miles per hour.
Intelligent transport systems use software and hardware, along with information and communications technologies, to improve the efficiency and safety of transport networks.
They use a variety of information from cameras and sensors, along with control of traffic signals, to try to keep traffic moving, reducing the amount of harmful emissions.
Cars with individual navigation systems use satellite information on traffic flow to guide drivers away from traffic congestion and onto more free-flowing routes.