Hab wax-ku-ool ah oo lagu ilaaliyo masaafada ammaanka — iyada oo aan la tirinin mitir.
Marka gaariga hore uu gudbo dhibic go'an (calaamad, calaamad waddo, dhagax cidhif), ku tiri 'hal-kun, laba-kun, saddex-kun'. Haddii aad gaadho dhibicda ka hor inta aadan dhamayn tirinta, aad ayaad ugu dhow tahay.
Saddex ilbiriqsi waa waqtiga aad u baahan tahay inaad aragto khatar, aad falcelisid, oo aad bilowdo bareega si aadan ugu dhicin gaariga hortaada ah haddii uu si adag u bareego. Marka xawaaraha uu yahay 90 km/h, saddex ilbiriqsi waa qiyaastii 75 m. Taasi ma aha isla wax ahaan masaafadaada joojinta. Marka xawaaraha uu yahay 90 km/h dhagxaan qallalan, masaafada joojinta waa qiyaastii 59 m, falcelin 27 m iyagoo lagu daray bareeg 32 m. Bannaanka saddexda ilbiriqsi ahi ula kac ahaan ayuu uga weyn yahay, sababtoo ah gaariga hortaada ahi isna wuu bareegayaa, iyo sababtoo ah saddex ilbiriqsi waa wax aad tirin kartid, halka mitirada aad kaliya tijaabin kartid.
• Roob ama jid qoyan → xawaadle 4 ilbiriqsi • Roob ama baraf → 8–10 ilbiriqsi • Cerubaab ama aragga yareyd → masaafo aragga waxa ay tahay ish, waxaad joogtaa waajib ah in aad joogtid walalaal ah, maha tiro ilbiriqsi quduusan • Baaskuleenka cung yara (blokes aragtida hore) → kordhiso masaafo dhaafinta Qaaciidu waxa ay tahay waxaa yar la yidhaahdhu maaha ujeedka.