Are cycle lanes similar to "Must turn here" traffic signs?

Whatevering about legal ins and outs is precisely why some are even arguing about this, it's as clear as day that a cyclist going straight has priority over anyone turning left there, they are changing lane, not the cyclist.

All it screams is that a lot of people still need to be educated on how to use the roads here, instead of advocating that cyclists shouldn't do what they're legally entitled to do.

Cycle lane markings are different to road ones, they don't mean the same thing. You can't park on a solid line cycle lane but you can park all you like on a dashed one, because it's not a lane. It's basically paint on a road.

The very fact that you're questioning cyclists having priority going straight at all times suggests that you in addition to the above haven't educated yourself on the ROTR for a very long time.

It's a terrible design, and while I'm interested in an academic sort of way what the legal situation is, my experience is that you have to make it clear by your "road language" (not sure what the driving/cycling equivalent of body language is) that you're going straight on. People mae a lot of assumptions: especially when the cycle track implies that you're turning left.

Exactly, the road between the old Tuning Fork pub and the Yellow House in Rathfarnham is a perfect example of what a dashed cycle lane means. The road isn't wide enough to not drive in the dashed cycle 'lane'. It is purely marked on the road to remind drivers that it is a shared space.

Well, legally you can't park "all you like" on a cycle lane bordered with a dashed white line (as far as I recall)

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 A prohibition on the parking of a vehicle imposed by article 36 (2) (m) shall not apply to a vehicle parked in a cycle track, on the right hand edge of which traffic sign number RRM 023 has been provided, while goods are being loaded in or on to it or unloaded from it for a period not exceeding thirty minutes from the commencement of such parking.

(274/1998)

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Legally. In practice on the other hand, you can park all you like. But in practice, you can't safely go straight on in the scenario in this thread, whatever about the legal situation.

My recollection, now I think about it, is that a cycle track has to have one of the three or so blue signs with the bicycle on it, and be bordered by a continuous white line, or a broken white line. Having just the line or even coloured tarmac doesn't make it a cycle track. I think the "sharrow"-style lanes I mentioned don't usually have the blue sign.

Anyway I suspect we've given this subject more thought at this stage than whoever designed this junction.

A lot of the time that area just areas on the side of the pre-existing lane. But that clearly not the case here, which is what we're talking about. In the case there's road lanes in both directions, the cycle was separated by a kerb, and join the the road surface with no give in the road lane width or spec.
The dash line marks the edge of the road lane, as much as the cycle lane.

The markings could definitely be improved to provide the intentions more clearly one way or the other.

For what its worth, the RotR refer to the same. And I'll add "all you like" to things a certain poster has pulled from thin air

A driver may park in a non-mandatory cycle track for up to 30 minutes, but only if they are loading or unloading their vehicle and there is no alternative parking available.

Point me to anywhere where they don't, you're the one who stated it wasn't universal, that is what I initially replied to.

You made the claim that it’s a universal priority. The onus is on you to back that up. If that law exists should be easy to point to it, right.

It’s not possible for any one to prove a negative. I can’t point to where the law doesn’t exist.
(unlike your BS parking claim, I could prove you wrong as that law exists).

With a bit of sense, there’s load of situations where going straight won’t have priority.
eg: On a green filter arrow only when straight ahead is red. Inside a turn only lane, inside dual turning lanes.