Monday, June 16, 2008

BUS VS CARS

A car occupied by one person produces on average 2.06 grams/passenger-mile (g/pm) of nitrogen oxides for work trips. A fully occupied transit bus, on the other hand, would produce 1.54 g/pm, while a fully occupied rail transit system would produce only .47 g/pm for the same distance. Similarly, the car occupied by one person would produce 15.06 g/pm of carbon monoxide and 2.09 g/pm of hydrocarbons. The bus would produce 3.05 g/pm and .2 g/pm of the same pollutants, respectively. From an environmental point of view, trains are the best form of transportation: a full passenger train produces only .02 g/pm pf carbon monoxide and .01 g/pm of hydrocarbons.

A bus with as few as seven passengers is more fuel efficient than the average automobile used for commuting. The fuel efficiency of a fully-occupied bus is six times greater than that of the average commuter's automobile, while the fuel efficiency of a fully-occupied rail car is fifteen times greater than that of the average commuter's automobile. A single person who commutes via a transit system instead of driving alone will save 200 gallons of gasoline per year. A 10% nationwide increase in transit ridership would save 135 million gallons of gasoline per year. This fuel efficiency results in personal savings and in a cleaner environment for all.

For people who would like to help make the environment a cleaner place, mass transit is an ideal solution. It may not be free to build, but in the long run it is healthier for everyone. Less pollution will make the air cleaner, and fewer resources such as gasoline will be used. Many cities do have viable mass transportation systems, and the people who use them are, on the whole, well-satisfied.

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