PublicSignals
Publicsignalsplaysanimportantroleinpeople'sdailylife,allwalksoflifecanrealizethegreatimportanceofprotectingtheenvironmentbycatchingaglimpseofstreetsignalslike"Nolitteringorspitting".Andowingtothedistributionofpublicsignals,thecitizenswillhaveabetterlifeunderthecontrolandsuperviseofmoralprinciplesandlaws.