Their research suggests that road accidents fall by as much as 60 per cent when one-way systems are converted to two-way traffic.

On each occasion, it has no recollection of having done this before, and thus proclaims the two-way traffic to be new.

Had health and safety existed, we would never have invented fire, let alone driven cars in two-way traffic.

What felt like a one-way street can change to rewarding two-way traffic.

Any bridge worth constructing must be worthy of two-way traffic.