The article is in Dutch. The city is reducing the speed on many city roadways from 50 km/hr to 30 km/hr, to increase safety for cyclists and pedestrians. The goal is to reduce traffic injuries and deaths by 20-30%.
As usual, carbrains on social media are complaining left and right. “Some ebikes are faster!”
I’m sure it won’t be measured for a change like this, but I imagine this will be an improvement in terms of noise pollution from the traffic.