[memen]

In the Netherlands it is very common to have both crosswalks and bike priority lanes on the roundabout, especially in busy city environments. This actually improves safety, as the 'vulnerable' road users cross when drivers are driving slow and alert. Also, the access to the roundabout is slowed down by the crosswalks and bike lane, which improves safety for the drivers as well.

[Doxin]

Note that it does require the design of the roundabout to be made with this in mind. Leaving any dutch roundabout involves a fairly tight 90 degree curve, forcing cars to slow down before encountering cyclists or pedestrians.