There is such a sign, but it's irrelevant as long as the traffic light is active so you can just ignore it. The whole intersection is also built in a way that y

There is such a sign, but it's irrelevant as long as the traffic light is active so you can just ignore it. The whole intersection is also built in a way that you can really only go right as there is nowhere to go straight ahead or even left. And you surely would notice the green arrow sign next to the red light and act accordingly.