Imagine two small towns of 1,000 people: Blacktop and Parktown. In the urban spr

Question

Imagine two small towns of 1,000 people: Blacktop and Parktown. In the urban sprawl that is Blacktop, all the residents own fuel-efficient cars (15 km/liter) and travel an average of 20,000 km per year. Over in Parktown, the situation is somewhat different. Good public transport and well-planned amenities mean that only half the inhabitants need a car. Those that do own a car tend not to need it so often and therefore replace it less frequently. Each car-owner drives an average of 10,000 km per year. However, their older-model vehicles are less fuel efficient (10 km/liter) than those in Blacktop. Which community

Explanation / Answer

for Blacktop fuel consumption = 20000 / 15 = 1333 liter/year

for Parktown, fuel consumption = 10000/10 = 1000 liter/year

so from the data given, Parktown is more sustainable.

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