The United States has adopted fuel economy standards that require increases in the on-road efficiency of new passenger vehicles, with the goal of reducing petroleum use and (more recently) greenhouse gas (GHG) emissions.
The work done by Alves et al. [13] presents a mechanism to balance the reduction of drivers' costs and the improvement of road traffic efficiency without road pricing.
If the nozzle is too far from the road, the efficiency of the decontamination would significantly decrease.
It is an integrated system of people, roads and vehicles, designed to significantly contribute to improve road safety, efficiency and comfort, as well as environmental conservation through realization of smoother traffic by relieving traffic congestion.
"We are taking actions with our popular C-Max hybrid so that customers are even more satisfied with their vehicle's on-road fuel efficiency performance," he said.
At last, based on the purpose of improving travel efficiency, road network was updating through expanding network scale or improving road hierarchies, which aimed at searching the stable network structure to meet certain service level.
Down the road, increasing fuel efficiency will depend heavily on aircraft improvements.
Along a two-way road, with brutal efficiency, allied warplanes bombed tanks, missile launchers and civilian cars, leaving a smoldering trail of wreckage that stretched for miles.
These standards have the goal of improving road safety and efficiency by providing the driver with consistent information regarding hazards, control of right-of-way (e.g., stop signs or signals), and direction guidance (e.g., "Highway 66 next left").
