In 2001, a study was done in Montréal on the environmental impacts of housing location choices: for each household choosing to reside near the Metro instead of on the periphery of the metropolitan region, there are each year:
- 1050 fewer automobile trips;
- 15 000 fewer kilometers travelled by car;
- 6000 fewer kilograms of greenhouse gases;
- 625 more transit trips; and
- 425 more trips on foot or by bicycle.
About 15% of global greenhouse gas emissions are attributable to the transportation sector - PNAS
Buses travelling at 27 km/h on exclusive bus lanes can carry an average of 20,000 passengers - Global Urban Development
About 79.5 percent of transport-related greenhouse gas emissions come from road transport. (13% from air travel; 7% from sea travel, and 0.5% from rail transport) - Climate Action Network & Adema, 2005
JAPAN: To transport one person for one kilometer, a car emits 168 gms of carbon, an airplane 109 gms, and a train 19 gms.
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