I often use a road that joins a main road at an angle of about 10 degrees and when turning left as i always do it feels wrong to indicate left because the traffic on the main road cant see my indicators.
Its like joining a motorway only with a junction at the end .
I always signal left but it doesnt feel natural.
Give an appropriate signal if it will be beneficial to other road users.
Joining the M5 N from the M50 you need to signal as the slip road becomes the off-slip to the services with no definition of where each starts and stops.
This should help 
digicardrebel:
well i always indicate , my take on it is if summitt goes seriously wrong and the bill turn up , they will for sure ask a)me ,“and were u indicating u"r intention then ,driver?” and b)any supposed witnesses "did u notice if the truck was indicating? ■■■■■■■■■ mark if you weren"t!
I totally agree.
A piece of advice given to me years ago by an ‘old hand’ was, “Always make sure you do everything right,then there’s no comebacks.”
If you are joining/merging with oncoming traffic,then it’s up to you to filter in with them,not the other way around.They have no obligation to give way,so surely it’s common courtesy (if nothing else) to indicate your intentions.
To be honest ‘Coffeeholic’,i think that your saying, ‘not indicating adds to the fun’ is a bit stupid and unprofessional.
Davnic:
To be honest ‘Coffeeholic’,i think that your saying, ‘not indicating adds to the fun’ is a bit stupid
It is, but you need to read the small print.
Davnic:
and unprofessional.
Driving my car I don’t get paid so in that situation it wouldn’t be professional but driving the truck I get paid, regardless of whether I indicate or not, so that will be professional.
Ok,professional was the wrong word.
I should have posted ‘irresponsible’ or maybe ‘unconcientious’.
If it starts off a roundabout, then I’d be signalling LEFT! 
I start indicating right once I’ve picked my ‘spot’, always works for me.
The car drivers need all the help they can get so I signal.
The highway code is made to cover every type of condition. You might be driving when it’s heavy rain with spray or heavy fog. You know what they say ‘see and be seen!’
Its a commonly accepted practise and somewhat expected by those already on the main carriageway, however, its not really necessary. Where else do they think you might be going to go at the end of an on slip?
A bit like continuing to indicate right when you’re in one of those right turn lanes at a set of lights that has its own separate stop line and signal lights.
Although in that situation driverone, you are signalling your intention to any pedestrians or cyclist unaware of the road layout and filter lanes.
Fergi:
Right if I’m joining the main carriageway left if I’m stopping on the slip for a wee break.
Quite correct according to the LGV and car training manuals. 
Well, we could go hopelessly off topic here about where and why you are stopping on the left, but I won’t as the correct indicator is being used. 
Cheers
Paul
No mention of any sliproad in the OP so I assume a non-motorway DC is indicated. On the latter you should usually indicate right to show your intentions, (unless e.g. joining from the right) otherwise what if you should breakdown on the sliproad or find one of switchlogic’s swans in front of you as I did once (well probably wasn’t one of his as it’s only the Queen and one other (unlikely to be him) who can own them in this country), so you might not have the immediate intention of joining the DC. I don’t generally let people out if they’re not indicating (on the street this is) as they are sometimes maneuvering to park.
If it’s some awful old DC with no or hardly any sliproad then it may be left, then perhaps right. As I’ve said before where is ROG when you need him? (Don’t answer that!)
toby1234abc:
When getting on to it,do you indicate left or right,■■
You dont know 
Snudger:
As I’ve said before where is ROG when you need him? (Don’t answer that!)
I’m fairly sure ROG’s view would be the same as mine. If you feel you must indicate, then it would be right, but its not necessary as your intention is already obvious from your road position.
Well, one’s intention should be obvious to anyone with sense in that situation, but what if there’s a frightened learner, worried that they might be on a motorway, concentrating on changing gear or whatever, too busy to notice someone wishing to enter their lane, or one of the million aged 80+ still driving (not that I wish to tar them all with the same brush of losing their faculties)? These people might need every little bit of help you can give them for them to do the right thing.
Also I disagree with the last police driving guide I saw that stated something like “only indicate when someone is there”. This is undoubtedly true if there is no-one, but what if you can’t see there is no-one there? No harm in lifting a finger and using a little electricity, I say.
Driveroneuk:
Snudger:
As I’ve said before where is ROG when you need him? (Don’t answer that!)If you feel you must indicate, then it would be right, but its not necessary as your intention is already obvious from your road position.
How could a driver on the main carriageway know whether you intend to race as far as possible up the slip lane before pulling in ahead of other vehicles or whether your intention is to pull in front of them or even behind them.
Driving is about interacting with other road users, the purpose of indicators as with all signals is to make other people aware of your intention so they can react accordingly, though you wouldn’t know it the way some people indicate after they’ve begun a manoeuvre 
Coffeeholic:
Why would you need to indicate/need an indication at all on most slip roads? If I see a vehicle coming down a slip road I just assume they are going to slip right and join the main carriageway rather than go left into a hedge/fence/field/wall/lamp post/truck spotter.
Personally, I would hope the indicator flashing wakes 'em up from the trance
Driveroneuk:
Its a commonly accepted practise and somewhat expected by those already on the main carriageway, however, its not really necessary. Where else do they think you might be going to go at the end of an on slip?
You could stop on the Hard Shoulder of Slip lane to switch Speed Limiter off,as often seen 