highway in metropolitan cities, overpass with safety grid.

highway city overpass safety grid torino italia ponte travi antifall urban vision sense travel depth metropolitan cities motorway perspective long road lockdown life lockout psychological suicide security meanings: block anti-suicide pedestrian overpass expressway metal grates steel grating outdoors fall arrester road cityscape freeway highways infrastructure urban metropolitan transport transportation asphalt city travel perspective lines direction traffic outdoor beach architecture vehicle confinement modern building board symbols symbol avenue scenic symbolic landscape highway cars strike planning controls car block lanes destination freedom risk protection suicide cage closure vital