As another measure to reduce pollutants generated by automobiles, the government is advocating ways of improving travel speed, reducing the volume of car exhaust, which are called eco-driving. The government now publicizes and promotes the environmentally friendly usage of cars (e.g. no idling) with the aim of reducing emissions by encouraging individual drivers to change their driving habits. One of the main problems is the idling of trucks while loading and unloading. The government is also publicizing performance and other data on energy-saving vehicles and low-pollution vehicles in an active effort to encourage drivers to switch to such vehicles.
Modal shift literally means shifting from one mode of transportation to another. However, when used to improve air pollution, the term represents a shift from a higher to a lower emission mode. Normally, in passenger transport, modal shift refers to shifting automobile users to public transportation, such as railways and busses. In physical distribution, it means a conversion from trucks to railway or coastal shipping business. Another form of modal shift is Park & Ride, designed to reduce the amount of automobile traffic flowing into the city at peak hours. Modal shift reduces the environmental burden without having to reduce the overall volume of transportation.