Research in gPBL : Electrical bus

Research in gPBL
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	| Electrical bus |

	An analysis of electric bus pilot programs in several cities show that electric buses can provide clean, efficient, cost-effective transportation, according to a new report.

	Buses account for nearly half of all public transit use in the United States. In addition, school buses carry about half of all children to school each day. The use of electric buses in the nation’s transportation fleet is still small but it is growing rapidly, according to the report, which counted a total of 528 fully electric, battery driven buses in service across the country, a 29% increase in 2018 alone.

	And while electric buses are still more expensive that fossil fueled buses, electric buses can provide cost savings over the long run. An average diesel transit bus costs around $500,000, compared with $750,000 for an electric bus, and a diesel school bus costs around $110,000 compared with $230,000 for an electric school bus, according to the report.

	Over its lifetime, however, an electric bus could save $400,000 in fuel expenses and $125,000 in averted maintenance costs, according to figures from bus manufacturer New Flyer that were cited in the report. Electric buses could provide fuel and maintenance savings of up to $50,000 a year over fossil fuel powered buses, resulting in a five year payback period, according to estimates from another bus manufacturer, Proterra, cited in the report. Electric buses have significantly fewer parts than fossil fuel buses. They do not have an exhaust system, their braking systems last longer, and they do not require oil changes.

citation : https://www.publicpower.org/periodical/article/electric-buses-mass-transit-seen-cost-effective

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First we find the problem, what we are doing now is find a way to reduce co2 emissions inside our campus.

	1st we need to identify where are most co2 come from in the first place
			1. Motorcycles: motorcycles are mainly use in student. They are the main producer of co2 in campus area because of how far away each section and building in the campus is, so motorcycles become a convenient choice without any much consideration.
			2. Laboratories: laboratory can somewhat produce co2 to the air especially laboratory for engineering student which use extensive of machinery.