Cholinga chachikulu cha aHighway chotchingam'mphepete mwa msewu waukulu ndi kupanga chotchinga chitetezo kuthandiza kuteteza woyendetsa galimoto amene anasokonekera pa msewu. mizati zothandiza, piers mlatho ndi kusunga makoma ndi zopinga zina.Zikatere, kukantha njanji kungakhale kwabwino kwambiri kuposa kuthana ndi zopinga, kotero kuti zotchinga nthawi zambiri zimayikidwa. Zimachepetsa kuopsa kwa ngozi yomwe ingachitike ndikupangitsa misewu kukhala yotetezeka. panjira, kuichedwetsa kapena kuimitsa, kapena nthawi zina kungoyichepetsa mokwanira ndikuilola kuti ipitirire panjira yolondera.