Fig. 4
From: Self-explaining roads: What does visual cognition tell us about designing safer roads?
Two types of roads which can be considered to be self-explaining. On the left a typical Dutch motorway with defining features for fast driving such as wide lanes, smooth asphalt, an emergency lane, guard rails, overhead lane control signs, no sharp curves and a lot of preview. On the right, a typical Dutch woonerf (also known as “shared space”) designed for slow driving (maximum speed 15 km/h) with defining features such a physical barriers, shared and paced space and landscaping and street furniture