autobahn automobile carriageway cars dual interstate lanes lorry main major motorway road route traffic truck trunk car city daffodils dundee grass Kingsway lights lorries signs sky trees urban van vans bushes congestion tarmac transport verge voiture bridge interchange intersection junction overpass ramps slip Friarton bee-friendly berlin central reserve dual carriageway flower germany Grass Family grunewald meadow medial median natural environment nature reserve plant Plant community strip vegetation