> You can't design a city for both walking and bicycles. It seems more appropriate to me to say: You can't optimise a city for both walking and bicycles. You c

> You can't design a city for both walking and bicycles. It seems more appropriate to me to say: You can't optimise a city for both walking and bicycles. You can certainly design it for both (and even public transport and cars), with the necessary trade-offs.