Don't know why they don't synchronise the traffic lights on long roads if they're so worried about pollution. In Berlin the Heerstrasse has synchronised lights along it's full length. If you get through a green light and keep to the speed limit then you get green all the way for your journey. No stopping and starting all the time, which cuts down on polllution. Simples.
Lived in W Berlin for 7+ years so think I know the area quite well, having done daily travelling up the Strasse. My comments are pretty valid, I think for long roads with myriad traffic lights. Don't believe everything you read on Google.
Then you will know that Heerstrasse consist of the Bundesstrasse PLUS two roads either side of the Bundesstrasse.
The two side roads take local traffic and means that the junctions across the Bunderstrasse can be much further apart because there are fewer roads join the Bundesstrasse.
Yes we could do the same but it would take a tremendous amount of demolition to create a 60 yard wide path that the Heerstrasse is for most of its length through Berlin. The A41 is about 20 yards wide, the M53 is only 30 yards wide even at the 6 lane sections.
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