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Kinja'd!!! "TheRealBicycleBuck" (therealbicyclebuck)
06/09/2020 at 09:36 • Filed to: None

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This is one of the most impressive results of ground-penetrating radar (GPR) I’ve seen to date.

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Automated processing of imagery is becoming more widely available. Visual processing led to neat projects like Photosynth and now several companies offer software which can build 3-D models from imagery.

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Supervised processing of LiDAR has been available for quite some time now, but to see it finally cross over into GPR is really neat. It won’t be long before we can combine photos, LiDAR and GPR into a fully-interactive 3-D environment.


DISCUSSION (11)


Kinja'd!!! facw > TheRealBicycleBuck
06/09/2020 at 09:55

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Yeah, this was super cool.

I always find the idea that cities can just be abandoned troubling, but such were the dark ages I guess.


Kinja'd!!! MrDakka > facw
06/09/2020 at 09:59

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Bubonic plague? 


Kinja'd!!! Milky > facw
06/09/2020 at 10:05

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Sadly topical.

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Kinja'd!!! facw > MrDakka
06/09/2020 at 10:06

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Sounds like this place was abandoned around 700, so well before the plague. But it would have had centuries of decline following the fall of the Western Roman Empire. I don’t know the exact history, but presumably they were dealing with decreased trade and more dangerous roads, and maybe even raids on the town itself.


Kinja'd!!! facw > Milky
06/09/2020 at 10:11

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True enough. Honestly I think one of the reforms we should make to the H1B visa system is requiring that some percentage of H1B (or other similar visas) jobs be in places where population has declined over the past half-century, especially for large businesses. This not only puts people there instead where housing pressures go the opposite way, but companies would presumably also want to hire others for those offices as well, instead of having a shop made up of all foreign workers. Certainly can’t solve everything, since there aren’t that many of them granted, but it would still provide a bit of revitalizing pressure.

Things in Detroit are bad enough that besides just tearing down houses, they probably should be converting w hole neigh borhoods into park lands so city services don’t need to be maintained, or unincorporating areas where it is too expensive for the city to provide services.  


Kinja'd!!! ranwhenparked > facw
06/09/2020 at 10:28

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We still do it, Bodie, California had over 10,000 residents at its peak (which would have been pretty good sized for the Middle Ages, London had 15,000 in the 1100s), and it was totally abandoned by the end of the 1940s. Plymouth, Montserrat had over 4,000 citizens, plus that many more in the surrounding area, and was totally abandoned in the 1990s. 


Kinja'd!!! facw > ranwhenparked
06/09/2020 at 10:50

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Of course London itself is an example, having gone from a population as high as 60,000 circa 100AD to being basically deserted by the 9th century, at which point Alfred the Great reoccupied the city and made it inhabitable again, so that he could use the Roman walls to defend against Viking invasion.


Kinja'd!!! Milky > facw
06/09/2020 at 11:01

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Its hard to do that though when their is one family left on the block. You dont want to displace them, so you’ re left with almost a rural setting in some areas. There is no easy answer obviously, but the city has bulldozed thousands of abandoned houses in the last few years.  They are trying.  


Kinja'd!!! facw > Milky
06/09/2020 at 11:12

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I think you do have to displace them (not like there’s a shortage of homes available). Or as I say, you can make those sparse areas no longer part of the city, and let them pay the premium for utilities and services. It just doesn’ t make sense to provide city services to an area that is effectively rural density.


Kinja'd!!! Milky > facw
06/09/2020 at 12:24

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Its hard to tell someone they have to pay more for the same service when they are in poverty. Or that they have to move when just getting by is a struggle and Detroit isn’t in the position to over pay for property. Plus if you kick them out you’ll get even less property taxes.

Theres no easy answer obviously.  


Kinja'd!!! facw > Milky
06/09/2020 at 12:28

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It’s not nice, but at some point the city has to decide the subsidy is too high (especially when budgets are tight). The city could probably buy a house elsewhere and pay for movers and still come out ahead long term. Giving up property taxes is no big deal for the city if they a lready spend much more on services than they recoup from property taxes.