red and white lines of wooden barrier . at subway station of airport background red white warning fencing is protects for no entry

airport airportsecurity airportsigns airportterminal background barrier broken btsbangkok btsskytrain building construction danger dangerous design electrictrain elevator entrance entry escalator fence industry label line office order outside protection protects renovation ribbon runway safety security sign site stop streamer subway subwaystation subwaytrain symbol tape traffic trainstation transportation urban warning way