In terms of efficient use of the road, it's clear to me that single occupancy cars should be eliminated as much as possible from cities and busy areas. 100 peop

In terms of efficient use of the road, it's clear to me that single occupancy cars should be eliminated as much as possible from cities and busy areas. 100 people cycling will take up substantially less room than 100 cars with one person in each and more importantly, 100 cyclists won't suffer from congestion. As Cory Doctorow put it recently, geometry is against cars.