Isisindo somgwaqo onguthelawayeka ngonyawo ngalunye sinquma inani lentengo ye-guardrail.highway guardrail yokucaciswa kwehlukile, ngakho isisindo somgwaqo onguthelawayeka unogada ngonyawo ngalunye sihlukile.
Isisindo somgwaqo onguthelawayeka ngonyawo ngalunye sibalwa ngokuhlukanisa isisindo somgwaqo onguthelawayeka ngobude obuphelele, bese siwuphindaphinda ngonyawo olulodwa, futhi umphumela uyisisindo somgwaqo onguthelawayeka wokuqapha ngonyawo ngalunye.

Isisindo somgwaqo onguthelawayeka ngonyawo ngalunye asinqunyelwe, ngoba imininingwane nezinto ze-Guardrail zihlukile, ngakho isisindo sihlukile.

Isisindo sethiyori sesisindo somgwaqo onguthelawayeka unyawo ngalunye sincane kunesisindo sangempela se-Guardrail, ngoba isisindo sensimbi e-China sibalwa ngokomehluko olandelayo.

Ziningi izinto ezisetshenziswayo ezisezingeni eliphansi ze-Guardrail, hhayi ukuthi umenzi usebenzisa izinto ezisezingeni eliphansi, kodwa ukuthi umenzi uzenza ngokwezifiso ngokuya ngezidingo zekhasimende, ngoba ikhasimende kufanele libe ne- guardrail encane futhi lithumele ukuze ligcine inzuzo ukuze wenze inzuzo, ukuze isisindo se-guardrail yomgwaqo omkhulu ngonyawo ngalunye sibe lula.Ngemuva kuka-2014, izidingo zikazwelonke ze-Guardrail ziqinile kakhulu.Isisindo sesitimela somgwaqo onguthelawayeka ngonyawo kufanele sifinyelelwe, futhi uthayela ovimbela ukugqwala kufanele ube u-600 g/.