Ukufakwa ngaphandle nasendlini ezindaweni ezimanzi nezimanzi, amayunithi okusayina nokulawula axhumayo embonini, kololiwe, kumasiginali wethrafikhi, eziteshini zamandla ashisayo kanye nezakhiwa ngamanzi.Abekwe emoyeni, emiseleni, emiseleni, kubakaki bensimbi noma aqondiswe phansi, lapho evikela kahle.