The overall design represents simultaneous flowing waves, in harmony with the general unique spirit of Baku, a city that faces on the Caspian Sea. Inspirations drawn from the local traditional stone cladding guided the four new road tunnels finishing’s, interpreted to match the conception of a modern day city. The challenge has been to depict an image using clean smooth lines and high-quality architectural details conducive to road design, making sure that the architectural elements cause no distraction to drivers.