AAATHE 172. The approach to a junction may have a ‘Give Way’ sign or a  triangle marked on the road. You MUST   give way to traffic on the  main road when emerging from a junction with broken white lines  across the road.  173. Dual carriageways.   When crossing or turning right, first assess  whether the central reservation is deep enough to protect the full  length of your vehicle.  ● If it is, then you should treat each half of the carriageway as  a separate road. Wait in the central reservation until there is  a safe gap in the traffic on the second half of the road.  ● If the central reservation is too shallow for the length of your  vehicle, wait until you can cross both carriageways in one go.  Laws RTA 1988 sect 36 & TSRGD regs 10(1),16(1) & 25  highwaycodeuk.co.uk 91 