The study looked at how fuel use and emissions from regular gas vehicles and hybrid electric vehicles impact the environment and overall costs for transport companies. They compared how much energy and CO2 emissions each type of vehicle produces over its lifetime. Even though gas vehicles cost less to buy, electric vehicles have a lower environmental impact during use. By combining transport policies and using electric vehicles, companies can aim for cheaper and greener transportation options. Ultimately, the researchers found that electric vehicles offer a better balance of quality service, lower costs, and reduced environmental harm for transport companies.