You can see in the top picture(1990) that there are very few cargo trucks. It looks like mostly consumer traffic. The most likely altenative is the https://en.wikipedia.org/wiki/D%C3%BCsseldorf_Stadtbahn massive public transport system they've built since 1988.
You can see in the top picture(1990) that there are very few cargo trucks. It looks like mostly consumer traffic. The most likely altenative is the https://en.wikipedia.org/wiki/D%C3%BCsseldorf_Stadtbahn massive public transport system they've built since 1988.