Type B highway (or "strada extraurbana principale"), commonly but unofficially known as "superstrada", is a divided highway with at least two lanes for each direction, paved shoulder on the right, no cross-traffic and no at-grade intersections. Access restrictions on such highways are exactly the same of Italian motorways ("autostrade"), as well as signage at the beginning and the end of the highway (with the only difference being the background color, blue instead of green). Speed limit on type-B road is 110 km/h.