The Highway Code Rule(s): 170-190

Rule 170

Take extra care at junctions. You should

  • watch out for cyclists, motorcyclists, powered wheelchairs/mobility scooters and pedestrians as they are not always easy to see. Be aware that they may not have seen or heard you if you are approaching from behind
  • watch out for pedestrians crossing a road into which you are turning. If they have started to cross they have priority, so give way
  • watch out for long vehicles which may be turning at a junction ahead; they may have to use the whole width of the road to make the turn (see Rule 221)
  • watch out for horse riders who may take a different line on the road from that which you would expect
  • not assume, when waiting at a junction, that a vehicle coming from the right and signalling left will actually turn. Wait and make sure
  • look all around before emerging. Do not cross or join a road until there is a gap large enough for you to do so safely.

Rule 170: Give way to pedestrians who have started to cross

Rule 170: Give way to pedestrians who have started to cross

Rule 171

You MUST stop behind the line at a junction with a ‘Stop’ sign and a solid white line across the road. Wait for a safe gap in the traffic before you move off.

Rule 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.

Rule 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.

Rule 173: Assess your vehicle’s length and do not obstruct traffic

Rule 173: Assess your vehicle’s length and do not obstruct traffic

Rule 174

Box junctions. These have criss-cross yellow lines painted on the road (see ‘Road markings’). You MUST NOT enter the box until your exit road or lane is clear. However, you may enter the box and wait when you want to turn right, and are only stopped from doing so by oncoming traffic, or by other vehicles waiting to turn right. At signalled roundabouts you MUST NOT enter the box unless you can cross over it completely without stopping.

Rule 174: Enter a box junction only if your exit road is clear

Rule 174: Enter a box junction only if your exit road is clear

Junctions controlled by traffic lights

Rule 175

You MUST stop behind the white ‘Stop’ line across your side of the road unless the light is green. If the amber light appears you may go on only if you have already crossed the stop line or are so close to it that to stop might cause a collision.

Rule 176

You MUST NOT move forward over the white line when the red light is showing. Only go forward when the traffic lights are green if there is room for you to clear the junction safely or you are taking up a position to turn right. If the traffic lights are not working, treat the situation as you would an unmarked junction and proceed with great care.

Rule 177

Green filter arrow. This indicates a filter lane only. Do not enter that lane unless you want to go in the direction of the arrow. You may proceed in the direction of the green arrow when it, or the full green light shows. Give other traffic, especially cyclists, time and room to move into the correct lane.

Rule 178

Advanced stop lines. Some signal-controlled junctions have advanced stop lines to allow cycles to be positioned ahead of other traffic. Motorists, including motorcyclists, MUST stop at the first white line reached if the lights are amber or red and should avoid blocking the way or encroaching on the marked area at other times, e.g. if the junction ahead is blocked. If your vehicle has proceeded over the first white line at the time that the signal goes red, you MUST stop at the second white line, even if your vehicle is in the marked area. Allow cyclists time and space to move off when the green signal shows.

Rule 178: Do not unnecessarily encroach on the cyclists waiting area

Rule 178: Do not unnecessarily encroach on the cyclists waiting area

Turning right

Rule 179

Well before you turn right you should

  • use your mirrors to make sure you know the position and movement of traffic behind you
  • give a right-turn signal
  • take up a position just left of the middle of the road or in the space marked for traffic turning right
  • leave room for other vehicles to pass on the left, if possible.

Rule 180

Wait until there is a safe gap between you and any oncoming vehicle. Watch out for cyclists, motorcyclists, pedestrians and other road users. Check your mirrors and blind spot again to make sure you are not being overtaken, then make the turn. Do not cut the corner. Take great care when turning into a main road; you will need to watch for traffic in both directions and wait for a safe gap.

Remember: Mirrors – Signal – Manoeuvre

Rule 180: Position your vehicle correctly to avoid obstructing traffic

Rule 180: Position your vehicle correctly to avoid obstructing traffic

Rule 181

When turning right at crossroads where an oncoming vehicle is also turning right, there is a choice of two methods

  • turn right side to right side; keep the other vehicle on your right and turn behind it. This is generally the safer method as you have a clear view of any approaching traffic when completing your turn
  • left side to left side, turning in front of each other. This can block your view of oncoming vehicles, so take extra care. Cyclists and motorcyclists in particular may be hidden from your view. Road layout, markings or how the other vehicle is positioned can determine which course should be taken.

Rule 181: Left - Turning right side to right side. Right - Turning left side to left side

Rule 181: Left – Turning right side to right side. Right – Turning left side to left side

Turning left

Rule 182

Use your mirrors and give a left-turn signal well before you turn left. Do not overtake just before you turn left and watch out for traffic coming up on your left before you make the turn, especially if driving a large vehicle. Cyclists, motorcyclists and other road users in particular may be hidden from your view.

Rule 182: Do not cut in on cyclists

Rule 182: Do not cut in on cyclists

Rule 183

When turning

  • keep as close to the left as is safe and practicable
  • give way to any vehicles using a bus lane, cycle lane or tramway from either direction.

Rule 184

On approaching a roundabout take notice and act on all the information available to you, including traffic signs, traffic lights and lane markings which direct you into the correct lane. You should

  • use Mirrors – Signal – Manoeuvre at all stages
  • decide as early as possible which exit you need to take
  • give an appropriate signal (see Rule 186, below). Time your signals so as not to confuse other road users
  • get into the correct lane
  • adjust your speed and position to fit in with traffic conditions
  • be aware of the speed and position of all the road users around you.

Rule 185

When reaching the roundabout you should

  • give priority to traffic approaching from your right, unless directed otherwise by signs, road markings or traffic lights
  • check whether road markings allow you to enter the roundabout without giving way. If so, proceed, but still look to the right before joining
  • watch out for all other road users already on the roundabout; be aware they may not be signalling correctly or at all
  • look forward before moving off to make sure traffic in front has moved off.

Rule 185: Follow the correct procedure at roundabouts

Rule 185: Follow the correct procedure at roundabouts

Rule 186

Signals and position. When taking the first exit to the left, unless signs or markings indicate otherwise

  • signal left and approach in the left-hand lane
  • keep to the left on the roundabout and continue signalling left to leave.

When taking an exit to the right or going full circle, unless signs or markings indicate otherwise

  • signal right and approach in the right-hand lane
  • keep to the right on the roundabout until you need to change lanes to exit the roundabout
  • signal left after you have passed the exit before the one you want.

When taking any intermediate exit, unless signs or markings indicate otherwise

  • select the appropriate lane on approach to the roundabout
  • you should not normally need to signal on approach
  • stay in this lane until you need to alter course to exit the roundabout
  • signal left after you have passed the exit before the one you want.

When there are more than three lanes at the entrance to a roundabout, use the most appropriate lane on approach and through it.

Rule 187

In all cases watch out for and give plenty of room to

  • pedestrians who may be crossing the approach and exit roads
  • traffic crossing in front of you on the roundabout, especially vehicles intending to leave by the next exit
  • traffic which may be straddling lanes or positioned incorrectly
  • motorcyclists
  • cyclists and horse riders who may stay in the left-hand lane and signal right if they intend to continue round the roundabout. Allow them to do so
  • long vehicles (including those towing trailers). These might have to take a different course or straddle lanes either approaching or on the roundabout because of their length. Watch out for their signals.

Rule 188

Mini-roundabouts. Approach these in the same way as normal roundabouts. All vehicles MUST pass round the central markings except large vehicles which are physically incapable of doing so. Remember, there is less space to manoeuvre and less time to signal. Avoid making U-turns at mini-roundabouts. Beware of others doing this.

Laws RTA 1988 sect 36 & TSRGD regs 10(1) & 16(1)

Rule 189

At double mini-roundabouts treat each roundabout separately and give way to traffic from the right.

Rule 190

Multiple roundabouts. At some complex junctions, there may be a series of mini-roundabouts at each intersection. Treat each mini-roundabout separately and follow the normal rules.

Rule 190: Treat each roundabout separately

Rule 190: Treat each roundabout separately

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