Edwards and bell's point of view Including ambulances, fire engines, sanitation vehicles, TV and radio cars, airport operations, municipal construction projects, etc. Independence is more difficult in an age when cross-border spillovers of national monetary policy become powerful. These spillover effects make central Banks consider the impact of their policies on foreign and global systems. But it is difficult to pursue global goals when the central bank operates under the narrow, centralized mandate of its independence, and is close to impossible. With their understanding of how muscles work along with the need for the neurological system together with movement, they combined resistance training, stretching, balancing, and agility work. The only way to do this is based on their book ProBodX (Copyright 2003) in addition to their respective websites. They take four factors that highly involve the central nervous system. These factors are: According to the carrying capacity, there are minivans (under 1.8 tons), light trucks (1.8-6 tons), medium goods vehicles (6-14 tons) and heavy trucks (over 14 tons).