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The tram line has been open for about two years now, but people still have trouble remembering the tram has the right of way. Maybe this will help, the audible warning doesn't seem to be enough since many people have headphones (understandable, noise cancelling is a must if the city has any car traffic).
Oh that's Espoo near Sello? I go there often and have noticed the same thing. Tampere also has started projecting red lights as a line on the ground on the crosswalks near tram stops. I think one reason is the snow covering painted signs on the ground as well; the struggle every winter to figure out where there bike lanes are is real :/
Precisely the location. Not getting covered by snow is another benefit, it's nice to see the technology being used more.