Alternative Route
Where the N3 has been realigned, the old alignment has been designated R103. The R103 exists in three sections: between Durban and Ladysmith, between Warden and Villiers, and between Heidelberg and Johannesburg. The only exception is within Durban itself, where most of the old N3 alignment is designated as the M13 instead of having the usual R103 designation; the R103 diverges from the M13 in the suburb of Winston Park.
The R103 is typically used to avoid the toll plazas on the N3, with one notable exception being the Tugela East Toll Plaza located on the R103 itself where the R103 and N3 meet north of Ladysmith.
Prior to the redesignation of the National Route numbers in 1971, the N3 moved east at Heidelberg and passed through the towns of Standerton, Volksrust and Newcastle via Laign's Neck Pass, before joining the present alignment at Ladysmith. This route now designated R23 between Heidelberg and Volksrust and N11 thereafter remains an alternative to the N3.
Read more about this topic: N3 Road (South Africa)
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