Transportation sector, as the everyday carrier of millions of tons of freight and numbers of passengers, is
the irreplaceable and undeniable foundation of economic and industrial development.Even the
advancements in building a virtual world, which hoped to cut down on physical transportation by virtual
transference, not only could not decline the worldwide dependency on the sector, but also a rapid growth is
being witnessed. Nonetheless, at the same time of its importance to the world life, it is a danger to the world
life, since it is one of the hugest consumers of petroleum products and hence a great contributor to existing
pollutant particles in the air. The hazardous and fatal emissions from transportation sector could seriously
damage global health. The sector accounts for approximately 15% of overall greenhouse gas (GHG)
emissions and 23% of overall CO2 emissions, which is the most prevalent of all GHGs [1]. These global CO2
emissions from transportation sector have grown by 45% from 1990 to 2007, and are expected to continue to
grow by approximately 40% from 2007 to 2030