E 'ngoe ea mesebetsi ea mantlha ea bollards ke ho thibela litlhaselo tsa likoloi. Ka ho thibela kapa ho tsamaisa likoloi, li-bollards li ka thibela boiteko ba ho sebelisa likoloi e le libetsa libakeng tse nang le batho ba bangata kapa haufi le libaka tse hlokolosi. Sena se ba etsa karolo ea bohlokoa ho sireletseng libaka tsa boemo bo holimo, joalo ka meaho ea mmuso, boema-fofane le liketsahalo tse kholo tsa sechaba.