Izithintelo zokungqubana ziicingo ezifakwe embindini okanye kumacala omabini endlela ukuthintela izithuthi ukuba zingaphumi endleleni okanye zinqumle umda ophakathi ukuze kukhuselwe ukhuseleko lwezithuthi kunye nabakhweli.
Umthetho wendlela welizwe lethu uneemfuno ezintathu eziphambili zokufakelwa kweendlela zokukhusela ukungqubana:
(1) Ikholamu okanye i-guardrail ye-crash guardrail kufuneka ihlangabezane neemfuno zomgangatho. Ukuba ubungakanani bayo abuhlangabezani neemfuno, ubukhulu bomaleko we-galvanized abwanele, kwaye umbala awufani, kusenokwenzeka ukuba oko kubangele iingozi zendlela.
(2) I-anti-collision guardrail mayifakwe i-stake kunye nomgca wendlela ophakathi njengomlinganiselo. Ukuba i-outer road shoulder isetyenziswa njengereferensi ye-stakeout, iya kuchaphazela ukuchaneka kokulungelelaniswa kwekholamu (kuba i-roadbed yomhlaba ayinakulingana ngobubanzi ngexesha lokwakhiwa). Ngenxa yoko, ukulungelelaniswa kwekholamu kunye necala lendlela azilungelelaniswanga, nto leyo echaphazela ukhuseleko lwendlela.
(3) Ukufakwa kwekholamu ye-crash guardrail kufuneka kuhlangabezane neemfuno zomgangatho. Indawo yokufaka ikholamu kufuneka ihambelane ngqo nomzobo woyilo kunye nendawo yokuphakamisa, kwaye kufuneka ihambelane nokulungelelaniswa kwendlela. Xa indlela yokumba isetyenziselwa ukungcwaba iintsika, i-backfill kufuneka ihlanganiswe ngeeleya ngezinto ezilungileyo (ubukhulu bomaleko ngamnye abuyi kudlula i-10cm), kwaye inqanaba lokuxinana kwe-backfill aliyi kuba ngaphantsi kwelomhlaba ongaphazanyiswanga okufutshane. Emva kokuba ikholamu ifakiwe, sebenzisa i-theodolite ukuyilinganisa nokuyilungisa ukuqinisekisa ukuba umgca uthe tye kwaye uthambile. Ukuba ukulungelelaniswa akunakuqinisekiswa ukuba kuthe tye kwaye kuthambile, kuya kuchaphazela ukhuseleko lwezithuthi zendlela ngokungenakuphepheka.
Ukuba ukufakwa kwesithintelo sokungqubana kunokukholisa amehlo, kuya kuyiphucula ngcono intuthuzelo yokuqhuba kwaye kunike abaqhubi ulwalathiso olufanelekileyo lokubona, ngaloo ndlela kunciphisa ngempumelelo ukwenzeka kweengozi kunye nokulahlekelwa okubangelwa ziingozi.
Ixesha lokuthumela: Feb-11-2022
