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So far the best solution I've seen to this sort of thing (other than building a taller bridge) is the waterfall approach. Probably a bit spensie for some rando

So far the best solution I've seen to this sort of thing (other than building a taller bridge) is the waterfall approach. Probably a bit spensie for some rando railroad bridge but it's clever nonetheless. https://www.dailymail.co.uk/video/news/video-1008464/Amazing-water-curtain-Stop-sign.html https://www.dailymail.co.uk/video/news/video-1008464/Amazing...

rlanday 6y ago
That’s really cool. Is that a divided highway? How do the trucks back up and turn around there?
- deleted 6y ago
  [deleted]
- ogre_codes 6y ago
  They have them in more than one place, in some cases they have to stop traffic so the truck can back out.
simias 6y ago
I've often seen large gates with hanging chains at the maximal height just before low bridges and tunnels. Wouldn't that also be pretty efficient, reliable and not requiring any maintenance? I suppose having an obstacle spring in front of you would be even more likely to make you stop, but if you're still going when some chains hit the top of your vehicle you deserve to have your license suspended anyway.
- wolfgang42 6y ago
  The trouble with 11foot8 in particular is that it’s right on the intersection, so through traffic passing by the bridge without going under it would hit the chains as well.
  - surround 6y ago
    But that bridge in Australia isn’t on an intersection. There’s plenty of room for a hanging bar.
- SenHeng 6y ago
  The point is not to avoid damaging the trucks, it is to prevent the trucks damaging the bridge behind the barrier.
  - wtallis 6y ago
    Here's an example from 20 miles away on a spur line of what kind of bridge damage can result: https://www.wral.com/17469149/ https://www.wral.com/17469149/ The road and railroad were only closed for 4 days, but it's clear that if the truck in this incident had a bit more momentum, the bridge could have been removed entirely.
- pugworthy 6y ago
  There is a low bridge in Albany Oregon (near me) with hanging chains. The bridge is still beat to crap from all the collisions. I mean if you think like a rational person, a big "LOW BRIDGE" sign with blinking lights should be blatantly obvious, but it's not.
lvs 6y ago
That's pretty neat, but what does it look like during broad daylight? Is it only really visible at night?

rlanday 6y ago

That’s really cool. Is that a divided highway? How do the trucks back up and turn around there?

deleted 6y ago
[deleted]
ogre_codes 6y ago
They have them in more than one place, in some cases they have to stop traffic so the truck can back out.

simias 6y ago

I've often seen large gates with hanging chains at the maximal height just before low bridges and tunnels. Wouldn't that also be pretty efficient, reliable and not requiring any maintenance? I suppose having an obstacle spring in front of you would be even more likely to make you stop, but if you're still going when some chains hit the top of your vehicle you deserve to have your license suspended anyway.

wolfgang42 6y ago
The trouble with 11foot8 in particular is that it’s right on the intersection, so through traffic passing by the bridge without going under it would hit the chains as well.
- surround 6y ago
  But that bridge in Australia isn’t on an intersection. There’s plenty of room for a hanging bar.
SenHeng 6y ago
The point is not to avoid damaging the trucks, it is to prevent the trucks damaging the bridge behind the barrier.
- wtallis 6y ago
  Here's an example from 20 miles away on a spur line of what kind of bridge damage can result: https://www.wral.com/17469149/ https://www.wral.com/17469149/ The road and railroad were only closed for 4 days, but it's clear that if the truck in this incident had a bit more momentum, the bridge could have been removed entirely.
pugworthy 6y ago
There is a low bridge in Albany Oregon (near me) with hanging chains. The bridge is still beat to crap from all the collisions. I mean if you think like a rational person, a big "LOW BRIDGE" sign with blinking lights should be blatantly obvious, but it's not.

lvs 6y ago

That's pretty neat, but what does it look like during broad daylight? Is it only really visible at night?