It’s common knowledge that getting people to use public transportation instead of driving cars will reduce carbon emissions. According to Transportation Nation, transit riders last year saved 4.7 billion gallons of gasoline. That adds up to 37 million metric tons of CO2 or 10 pounds of CO2 per ride.
Intercity buses, which are gaining in popularity, can potentially save even more. Using figures provided by Megabus, a completely full bus, which holds 77 passengers, emits 14 times less pollution per passenger than a typical automobile. Using those numbers, any bus with four or more passengers in it will emit less per passenger than a car.
The numbers for city transit buses, which are less efficient and are constantly starting and stopping, are not as good. According to the Department of Energy, city buses achieve an average of 31 passenger miles per gallon, which is less than a typical car carrying 1.55 passengers, and thereby achieving 39 passenger miles per gallon. That is, in part, due to the fact that a typical city bus is less than 25 percent full.
Clearly, getting more people to ride the bus regularly instead of driving cars is one way to curb carbon emissions. Another way is to make buses more efficient. On that note, there is some very good news to report.
Volvo just announced that its new 7900 Hybrid Electric Bus will be launched at the International IAA Commercial Vehicles show next week. The bus which, utilizes a 201 HP electric motor in conjunction with a lithium-ion battery, could be a game-changer. Because the bus can be run in silent, emission-free, all-electric mode for up to 4.3 miles at a time, that means the bus can be used indoors and out. This can positively impact air quality in bus stations and shelters which has been observed to be a problem, not to mention the air quality inside the buses themselves. Click to continue reading »
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