Anecdata (from the US). I drive an electric longboard. The biggest impact on my safety came from one small change: start wearing a full-face helmet. It looks like a motorcycle helmet, but is lighter.
As soon as I started doing that, cars cyclists and just about everyone started taking me seriously. Cars no longer pass super closely. They no longer honk when I take the entire lane. Many even use indicators when passing me with a wide berth.
I think they basically treat me as a motorbike because the helmet makes them realize that I am a proper participant in traffic.
As a result also has a lower safety rating. But electric longboards don't reach high enough speeds to need the safety of a motorcycle helmet. So it's better to go with less neck strain.
As soon as I started doing that, cars cyclists and just about everyone started taking me seriously. Cars no longer pass super closely. They no longer honk when I take the entire lane. Many even use indicators when passing me with a wide berth.
I think they basically treat me as a motorbike because the helmet makes them realize that I am a proper participant in traffic.
This is the helmet: http://triple8.com/product/the-t8-racer/