You can also narrow the space between the curbs in which cars can go and achieve the same effect, while keeping pedestrians grade separated from traffic. It wo

You can also narrow the space between the curbs in which cars can go and achieve the same effect, while keeping pedestrians grade separated from traffic. It would go a long way if we could eliminate spaces where a driver can exceed 50 km/hr (31 MPH) while menacing unprotected users of the street.