Safe or not - it is up to individual to decide if it is worth the risk.
I used to live in a city where I would walk everywhere but I had the constant fear of cyclists running over me because they would drive all over the pavements without any regard for pedestrians. Imagine walking and having to look around all the time. I find it amusing how people in websites like this one talk about how we have to be very afraid of cars when the true terror, at least for me, were cyclists.
They are though(at least here in the UK) - a guy was convinced of manslaughter for hitting a pedestrian on a bike just last month. In general the rule is that the person in charge of a bigger/heavier vehicle is the responsible party in almost all collisions.