Comment 63590

By Ted Mitchell (registered) | Posted May 16, 2011 at 19:20:29

I think it's important to clarify how we use cars rather than just limit the discussion to more public transit, cycling, walking - all good things of course.

But in the spirit of a book called 'factor four':

Compare a single occupancy vehicle with one carpooling 4 people or a family of 4. Once you get to this level, you're looking at around 150 passenger miles per gallon. Better than air, and approaching that of buses, rail (and more flexible), walking and cycling.

So I'm advocating carpooling as one of the first things to do, especially in less urban settings. One extra person to halving fuel consumption is an impressive marginal gain.

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