[luckroy]

Perhaps you've never been on rural roads that also have houses? There are many places where a 50+ mph speed limit is appropriate even though there are little clusters of houses dotted along the route. It's not practical to lower the speed limit for every house that has children.

[falsedan]

> It's not practical to lower the speed limit for every house that has children.

Yes it is. Do you mean, it would make driving more inconvenient, since drivers would have to slow down when they passed?

[luckroy]

It's not just inconvenience, although that is part of it. The transportation department would have a huge added burden by needing a way to determine which houses have children, a lot more signage to mark the designated slowdown areas, extra workers to make the adjustments as families move around, a way to update various mapping/GPS systems, etc. The number of passing zones would be drastically reduced. Jake braking would be a nuisance for those houses with children. And there are probably more side effects that I can't think of immediately.

I don't disagree with any intention of improving safety, but there are pragmatic reasons we shouldn't unconditionally implement reduced speed limits around children.

[falsedan]

I think you're overcomplicating your proposed solution; if it's a hassle to track each family's residence, assume all residences may have families present. Compression braking is a nuisance, so post speed limit & compression breaking restriction signs well in advance of the houses so normal braking can be used.

In the UK, all this is done by putting up street lights. The Highway Code then dictates that the road has a speed limit of 30mph and is residential (no compression braking).

I don't understand your comment about overtaking. Are you thinking of long, straight roads with mostly-evenly distributed houses over a large distance?

[luckroy]

I don't think we're talking about the same kinds of roads.

In an area zoned for residential, e.g. a small town or village, the speed limit will drop and there are noise restrictions. That's quite common, although also quite sparse within the land area.

I've been speaking to unincorporated areas that have no zoning. Many of them are as you described: long, straight roads with mostly-evenly distributed houses over a large distance. These are the types of rural roads that make up the vast majority of land area in the midwest area of the US.

[seanmcdirmid]

Those houses are generally located far away from the road (farm houses) or are in some other way separated from the road way. If it’s a rural highway and houses are near the road, it typically results in a speed zone, even in desolate Nevada.

[luckroy]

That's not true everywhere. My wife's parents live in rural Iowa on a highway that has a 45 mph speed limit. Their home is part of a small cluster of homes and their mailbox is across the road, similar to the circumstances in the OP story.

[seanmcdirmid]

45 is a speed zone if the normal speed is 60 or 70. I just got done traveling on US 395 through most of California, and we would typically speed zone down to 45, then 40, then 35....around houses. I’m sure there are actually well defined rules about this in California.

Regardless, living on a highway is not prime real estate.

[luckroy]

Sounds like CA and IA work differently. 45 is the speed limit for that highway because it's windy. On the straighter roads, the limit is usually 50-55. However, there are still no speed zones (as you call them) for small clusters of houses.

[seanmcdirmid]

The whole west works different I think. I mean, who in their right mind would build their house right next to the highway (without a fairly long highway) if they didn't have to? As long as you have the land, you would build it 50-100 meters back!

The only time I see otherwise is if mountains or rivers are involved, or there is density (in which case it is sure to be zoned!).

[YSFEJ4SWJUVU6]

There are many types of highways. You might even call these rural roads just roads, even if they share the default speed limit for the area (80 km/h here).

With very low traffic density, you might build the house closer to the road (maybe 10m off, separated with trees) for just that reason – to save land. (Not all rural houses are farms.)

[sjg007]

It's common in the midwest and becoming an issue when towns expand and traffic picks up. Mailboxes on the opposite side of a county road should be illegal. I'm surprised actually that they are not.