bridge building buildings bus buses construction control detour development double-decker buses empty equipment excavation excavations excavator fences fencing MRT overhead property railway redevelopment redirection roadwork safety Singapore space stairs steps temporary traffic vacant blocks walkway bell chair decker environmental omnibus passenger seat transport abandoned decay decayed forgotten forsaken old shelter sky stop background britain british coach coaches England icon line London red three tourism traditional white cars city desert Giza panorama Pyramids tourist tourists view asphalt bus-stop depot distance hostel parking port station train travel voyage warsaw