Yes, cyclists too. When approaching an intersection which is not at right angles, it can be especially dangerous for cyclists when the speed of the car and cyclist is just right for the cyclist to be obscured for a long period of time. [1]
I also noticed when driving a certain Kei car in Japan with no a-pillar airbags and a so-called “split” or “double” a-pillar with a window between 2 skinny pillars, that the visibility is so much better. It feels great when you realize you don’t need to move your head around at all to see past them, the parallax affect of having 2 eyes makes them basically disappear. [2]
He shows off a rural (and thankfully now fixed) crossroads in the UK with seemingly great visibility and an unusually high rate of cyclist fatalities - the roads are at such an angle that any reckless driving speed can align with a reasonable cycling speed such that the driver's door pillar can block visibility of a cyclist with right of way right up to the point of impact - and it's compounded by the fact that the car is necessarily approaching from behind the cyclist, so a passing cyclist will be unaware of the danger possibly until they get hit.
Of course if drivers in the area actually followed the stop signs no one would get hit - but if you watch the video in a five minute period genuinely only about half of the cars passing through actually come to a complete stop at the stop sign. You need more than signage and quietly hoping that people to do the right thing.
I've had an entire Mazda 2 hidden from view in a roundabout, by the A-pillar and associated airbag of a VE commodore. Pedestrians and bicycles required much more effort to see in that car than any other I've ever driven.
A good rule of thumb is, if you are in dense complex traffic, to move your head around a bit when looking out and in the mirrors. Better coverage of dead angle in side mirrors, adding a bit more 3D into perspective.
Its sort of defensive driving - expect troubles, idiotic clueless drivers, people having heart attack or just turning head to yelling kid on backseat / nice lady walking nearby. Can't save it all but definitely helps.
Driving in country where people, when averaged, drive like crap is a good learning experience (albeit stressful). For me, whenever I enter France from Switzerland (on average 1x per week), its night and day and training (with cursing) resumes.
The density or complexity of traffic really has nothing to do with whether a car has been designed in such a way that it significantly impedes vision where it is most critical. In this case, a quiet roundabout with one other car almost directly in front.
