I-N3 ingumzila kazwelonke eNingizimu Afrika oxhuma iGoli neTheku, ngokulandelana amadolobha amakhulu aseNingizimu Afrika futhi elesithathu ngobukhulu. IGoli liyisizinda sezimali nezentengiselwano eNingizimu Afrika, kuyilapho iTheku liyitheku elisemqoka laseNingizimu Afrika futhi lingenye yamachweba amatasa kakhulu eSeningizimu Nenkabazwe futhi liyindawo yamaholide. ITheku liyitheku lapho iGoli lingenisa futhi lithumele khona impahla yalo eningi. Ngenxa yalokho, u-N3 umgwaqo omkhulu omatasa kakhulu futhi unethrafikhi ephezulu. "RDDA SOUTH AFRICAN NUMBERED ROUTE DESCRIPTION AND DESTINATION ANALYSIS". NATIONAL DEPARTMENT OF TRANSPORT. May 2012. Kulandwe ngomhlaka 25 March 2021.