Traffic on M1 motorway in Hertfordshire, United Kingdom

air pollution automobiles british scenes busy road busy roads carbon emissions carbon footprint city living congested traffic congestion endless jams england english scene english scenes exhaust emissions free flowing traffic global warming great britain heavy traffic homeward bound lorries major routes many vehicles motorway not moving overpopulated polluting environment population explosion population growth road trip rush hour rush hour slow crawl home slow moving solid traffic stationary traffic tail backs tail back traffic conditions traffic flow traffic fumes traffic lanes transport transportation uk scene united kingdom vans vehicles volume of traffic cars daytime driving heading home journey journeys motorways outdoors outside stock image stock photo stock photograph the road ahead the way forward travel travel photo travel photograph travel photography travel stock travelling travels truck trucks vertical travel destinations travel destination logistics supply chain color image color colour tourism destination uk