m25 london orbital motorway anti-clockwise carriageway closed and empty at junction 18 due to traffic accident near maple cross

accident anticlockwise architecture asphalt background barrier blue bridge carriageway cars chorleywood closed concrete cross cutting due empty europe gantry grass green hertfordshire highway hillside iron journey junction landmark landscape london lorries lorry m25 maple metal modern motorway orbital outdoor overhead police protection road rural scenic sign sky span super tourism town traffic transport transportation travel trees vehicles