concrete corridor damp dangerous dank dingy night path pedestrian scary subway tiles tunnel underpass arrows bridge overpass pillars road street viaduct bike track light shine bus platform railway stairs station timetable train 110 ca California cars freeway old pasadena usa access angle angled angles architectural architecture brickwork curved curving decorative passage passageway pedestrians practical protective safe safety shade shadows shiny slant slanting slope sloping stonework sunlight sunshine through wall pathway paved paving smooth handrail handrails walls foliage greenery vegetation