Will this make me look crazy/interfering?

[IncognitoUsername]

There is a group of children (7 or 8, ages around top end primary) who regularly cycle down our road - every day now the holidays have started They go full pelt down the middle of the road, two or three in a line. By our house is a corner and a slight downhill. They speed round this corner. I have tried to go out and shout to them but they ignore me. I’m so worried there is going to be an accident, have warned my husband and regular visitors to take extra care. I don’t know who they are or where they live. However, there is a guy who lives on the road parallel to ours who drives a big wagon thing for work. Due to the size of the vehicle he can not turn round so uses our road to get through. Because of the hill and the corner he often takes up a lot of the road. He drives slowly but it’s a big thing to hit a child with. It wouldn’t be his fault if an accident happened. As I don’t know the children but do know where this man lives (though I don’t know him) would I be bonkers to pop round and speak to him? I’m not sure what he can really do apart from taking extra care. I don’t want to be an interfering neighbour, but nor do I want to be the one phoning for the ambulance.
I worked in safeguarding for 20 years so may be over thinking this. Was talking to my mother at the weekend and she pointed out that the children are going past more often than I think as I don’t spend a lot of time in the lounge/putting the bins out which is when I’ve seen them.
What would people do?
YABU - do nothing
YANBU - say something

I'd say if you do you should frame it like this-
You're pissed off about the kids mucking about in the road, and thought he might be too as you know he has to drive his truck. So kind of see if he's already aware, then ask if he knows them? If he does he might tell you where they live, or he might be persuaded to have a word with them.
If he's oblivious then you can just frame it as a bit of a heads up as they seem to be here now it's the holidays. So kind of get him on your side as he could help sort the situation somehow. But don't explicitly ask him to do anything.

It would of course be his fault if he hit a pedestrian because his cars too big to navigate the road properly and prevent him from seeing people.
But, I'm sure he'd welcome the heads up.

Could you put a general notice up in your local Facebook group, or on next door, saying that you've noticed loads of kids cycling dangerously down X Street and you're worried.

Telling this one guy won't really do anything at all, as it will only make him aware, not the dozens of other drivers.

You could maybe also ask the council to put up some "drive slowly" signs, or whatever else is appropriate.

No don't do that, it crosses the line into interfering and will probably come across as you criticising his driving skills.

If you ever find out where the kids live, give their parents a knock.

There isn’t a local FB group. Friend has mentioned the Next door app so I think there is one of those. I’ll ask her.

That’s what concerned me. Thing is, the kids ride so fast that I’m not likely to find out where they live. It’s generally a very quiet street, with the only cars belonging to residents or visitors. The children do not live on our street as I know everyone here.

Yeah but one day you might see them at the local shop with their parent(s) or something.

Until then, there's nothing you can do apart from maybe a descriptive post on FB.

You'll look like you are criticising his driving and saying he isn't aware enough...

Better to check for a local FB page, put a note on there and try and locate the parents of the kids as they are the ones lacking road awareness