you say 'By adding circuity for cars but not other transport modes, these types of cul-de-sacs may not encourage driving. Why drive five minutes when you can walk it in three?'
I think you meant 'by adding circuity for pedestrians' rather than 'by adding circuity for cars'.
Low traffic neighbourhoods are a type of cul-de-sac
I think you've got a typo--
you say 'By adding circuity for cars but not other transport modes, these types of cul-de-sacs may not encourage driving. Why drive five minutes when you can walk it in three?'
I think you meant 'by adding circuity for pedestrians' rather than 'by adding circuity for cars'.