Izikhungo ku Houston vula North Highway ube nesilinganiso esimaphakathi — 3 (ngokwezilinganiso zomsebenzisi Mapich).
North Highway, Houston ezitholakele — ikhemisi.
Le datha ikhiqizwa kusetshenziswa izihlungi zangokwezifiso ezisuselwe kukho 1 inkampani, eyethulwe kuleli khasi.