How to indicate on mini-roundabout (T junction style)?

[Mucky_Pup]

Wouldn't indicate if I was going straight on.

 

[GSDog]

If you are approaching from the opposite direction and you may have to give way, having that driver indicate that they aren't going to be turning right in front of you allows you to not slow to a virtual stop and smooths traffic flow.

You can usually tell what a drivers action is going to be by their speed, road position or even body language/eye contact, etc.
I was taught never to trust other drivers signals, especially on roundabouts, and to always be in a position to stop if necessary. That doesn't mean slowing to a virtual stop, but it means constantly observing other drivers.
I've seen people approach roundabouts with their left indicator on only to suddenly go straight on or do a right turn, so you can never be sure.

There is a roundabout pretty much identical to the one shown in this thread which I use everyday and I very rarely see people indicate left when going straight on.

 

[PMKeates]

You can usually tell what a drivers action is going to be by their speed, road position or even body language/eye contact, etc.
I was taught never to trust other drivers signals, especially on roundabouts, and to always be in a position to stop if necessary. That doesn't mean slowing to a virtual stop, but it means constantly observing other drivers.
I've seen people approach roundabouts with their left indicator on only to suddenly go straight on or do a right turn, so you can never be sure.

It is a bit of a guessing game, but if they are careering along at 40 and they start indicating left, it's another factor to support them not pulling a handbrake turn and going right! If they don't indicate at all then you only have their attitude to go on. I think the indicating left is more of a help than it is a hindrance.