Sinkhole swallows two pedestrians in Seoul, pair survive fall with only minor injuries

Notice how the side walks looks just before the collapse

Could cameras be used to detect on coming depressions in roadways and sidewalks?

CrazyNeutrino said:

Sinkhole swallows two pedestrians in Seoul, pair survive fall with only minor injuries

Notice how the side walks looks just before the collapse

Could cameras be used to detect on coming depressions in roadways and sidewalks?

Sure could. If we had enough cameras to monitor every metre of road and footpath in the world.

OCDC said:

CrazyNeutrino said:

Sinkhole swallows two pedestrians in Seoul, pair survive fall with only minor injuries

Notice how the side walks looks just before the collapse

Could cameras be used to detect on coming depressions in roadways and sidewalks?

Sure could. If we had enough cameras to monitor every metre of road and footpath in the world.

If every camera being used for porn were freed up there would be

OCDC said:

CrazyNeutrino said:

Sinkhole swallows two pedestrians in Seoul, pair survive fall with only minor injuries

Notice how the side walks looks just before the collapse

Could cameras be used to detect on coming depressions in roadways and sidewalks?

Sure could. If we had enough cameras to monitor every metre of road and footpath in the world.

Maybe self driving cars with cameras?

I think a world wide University competition should be started for undergraduates to come up with a way to detect developing sink holes

There are systems already used in mining that are designed to use radar to detect a relative change in distance to alert the operator to things like this.

The two main problems are, as I see it:

1.The billions of kilometers of roadways on the planet.
2. The system detects a problem – then what? A red light flashes? How does that help anyone?

Postpocelipse said:

OCDC said:

CrazyNeutrino said:

Sinkhole swallows two pedestrians in Seoul, pair survive fall with only minor injuries

Notice how the side walks looks just before the collapse

Could cameras be used to detect on coming depressions in roadways and sidewalks?

Sure could. If we had enough cameras to monitor every metre of road and footpath in the world.

If every camera being used for porn were freed up there would be

True, they are focusing on the wrong holes opening up

Carmen_Sandiego said:

There are systems already used in mining that are designed to use radar to detect a relative change in distance to alert the operator to things like this.

The two main problems are, as I see it:

1.The billions of kilometers of roadways on the planet.
2. The system detects a problem – then what? A red light flashes? How does that help anyone?

A machine goes ping!

CrazyNeutrino said:

I think a world wide University competition should be started for undergraduates to come up with a way to detect developing sink holes

What?!?!? You want college students to stop shooting porn also?

CrazyNeutrino said:

I think a world wide University competition should be started for undergraduates to come up with a way to detect developing sink holes

What about ‘world peace’?

OCDC said:

Carmen_Sandiego said:

There are systems already used in mining that are designed to use radar to detect a relative change in distance to alert the operator to things like this.

The two main problems are, as I see it:

1.The billions of kilometers of roadways on the planet.
2. The system detects a problem – then what? A red light flashes? How does that help anyone?

A machine goes ping!

Do that again!!! Even reading the “ping” sound excites me!!! :P

Postpocelipse said:

OCDC said:

Carmen_Sandiego said:

There are systems already used in mining that are designed to use radar to detect a relative change in distance to alert the operator to things like this.

The two main problems are, as I see it:

1.The billions of kilometers of roadways on the planet.
2. The system detects a problem – then what? A red light flashes? How does that help anyone?

A machine goes ping!

Do that again!!! Even reading the “ping” sound excites me!!! :P

backs away slowly
avoids eye contact

Carmen_Sandiego said:

There are systems already used in mining that are designed to use radar to detect a relative change in distance to alert the operator to things like this.

The two main problems are, as I see it:

1.The billions of kilometers of roadways on the planet.
2. The system detects a problem – then what? A red light flashes? How does that help anyone?

I would use a yellow flashing light

OCDC said:

Postpocelipse said:

OCDC said:

A machine goes ping!

Do that again!!! Even reading the “ping” sound excites me!!! :P

backs away slowly
avoids eye contact

Only voicing my yes vote for providing more machines that ping. The living are safe.

Carmen_Sandiego said:

There are systems already used in mining that are designed to use radar to detect a relative change in distance to alert the operator to things like this.

The two main problems are, as I see it:

1.The billions of kilometers of roadways on the planet.
2. The system detects a problem – then what? A red light flashes? How does that help anyone?

3. The risk to people as a result of falling into sinkholes is pretty small and as a result there are probably better things we could spend our money on.

CrazyNeutrino said:

Sinkhole swallows two pedestrians in Seoul, pair survive fall with only minor injuries

Notice how the side walks looks just before the collapse

Could cameras be used to detect on coming depressions in roadways and sidewalks?

sure

everyone could wear a camera on their head and a computer could analyse the image coming through

in theory it could even spot people that were sick eg they are abnormally hot and tag them as INFECTED so they could be stopped by the appropriate authority and whisked away for further analysis

OCDC said:

Carmen_Sandiego said:

There are systems already used in mining that are designed to use radar to detect a relative change in distance to alert the operator to things like this.

The two main problems are, as I see it:

1.The billions of kilometers of roadways on the planet.
2. The system detects a problem – then what? A red light flashes? How does that help anyone?

A machine goes ping!

then lays an egg

I find the content of this thread, so far, rather entertaining.

SCIENCE said:

I find the content of this thread, so far, rather entertaining.

Could be said, yes,

I find sink holes really freaky..

One minute you are wandering along having a life next minute BAM!

I reckon when those two made it home they purchased a lotto ticket.

CrazyNeutrino said:

Sinkhole swallows two pedestrians in Seoul, pair survive fall with only minor injuries

Notice how the side walks looks just before the collapse

Could cameras be used to detect on coming depressions in roadways and sidewalks?

Not a chance in the world. I’ve seen depressions just like that one dozens of times, at least. There’s even a minor one on my patio. The second most common cause is loss of soil following the death of tree roots. The most common cause is construction on unstable Earth. The conditions required for a firm subbase are very precise, requiring a suitable grading of material from clay or fine sand to coarse sand or gravel in the correct proportions, and very often the relatively unskilled workers get it wrong. The result, a growing dip in the surface, tends to be given a superficial repair by removing and replacing the surface rather than a correct repair involving removing and replacing the subbase over a bigger area.

Predicting sinkholes like this one is like predicting earthquakes. There are hundreds millions of growing small depressions just like this one for every depression covering a sinkhole. Ground movement before an earthquake can be monitored, but that won’t tell you when a big Earthquake will strike.

Look, it may be worth trying, tying software into security cameras that detect day-by-day changes in surface. But in the Seoul subway for instance, a similar rapid change in appearance could be caused by spilled dark material penetrating the cracks between the tiles.

Spider Lily said:

I find sink holes really freaky..

One minute you are wandering along having a life next minute BAM!

I reckon when those two made it home they purchased a lotto ticket.

I know it isn’t a sink hole but one day walking along a drive in an old opal mine, my foot went through the floor, it was only about 50 mm thick at that spot, up to my groin with one leg and mullock pouring down the hole blocking it in. I was down there alone too. Thankfully I was able to extricate myself slowly but it was a scary moment.