During the past two years of road works there has not, to my knowledge, been a single collision in Kalk Bay, whereas before they were regular and frequent. What roadworks do is they slow us down and wake us up. When I drive from Muizenberg to Kalk Bay and have to change from one side of the road to the other,  pay attention to signs, go over humps in the road, avoid slipping into the excavations,  I navigate consciously instead of driving on automatic - and a the same time I drive more slowly.  Or is it because the road is sensibly one way?