[HN Gopher] The longest straight line in Great Britain without c...
       ___________________________________________________________________
        
       The longest straight line in Great Britain without crossing a
       public road
        
       Author : samwillis
       Score  : 136 points
       Date   : 2023-04-07 13:30 UTC (9 hours ago)
        
 (HTM) web link (www.statsmapsnpix.com)
 (TXT) w3m dump (www.statsmapsnpix.com)
        
       | justinator wrote:
       | Being an avid hill walker, I love to see how far away from
       | civilization I can get in Colorado on my hikes. I should be able
       | to get really out there, right? My State is 1/3 public,
       | undeveloped land!
       | 
       | The farthest summit from a road is about 6 miles. Kinda made me
       | sad inside. That's how remote you can get from a car.
       | 
       | I have gone on farther trips without crossing a paved road - one
       | being 120 miles that took 6+ days (tough terrain!) by following
       | the crest of an entire mountain range - quite difficult. As the
       | crow flies, that's about 70 miles point to point. If you stretch
       | the theoretical limit between paved roads - encapsulating this
       | entire mountain range, it's about 78 miles. There's about 3 rough
       | 4WD tracks that you can use to cross it - but that's it, in that
       | entire range, any other point across you have to traverse by foot
       | (and there's only a few trails to do so too).
       | 
       | Hope it stays that way.
       | 
       | But again, it's still always <6 miles to where you can drive a
       | car.
       | 
       | I've been to more "remote" places, such as Alaska, with vast
       | Wilderness- but they let you fly planes into there, which seems
       | somewhat like cheating.
        
         | nonethewiser wrote:
         | Go to the boundary waters. Huge (1million sq acres) Easy to
         | navigate (canoe), sparsely visited, very remote, and no engines
         | allowed.
         | 
         | I don't know what the furthest distance from a road is. But I
         | would warn against using that as some definitive measure of
         | remoteness. Especially since not all roads are equal. There are
         | lots of rarely used dirt roads. Additionally, the boundary
         | waters are far from any significant metro (5 hours to twin
         | cities) and very far from a large metro (9 hours to Chicago).
         | The people that go are in driving distance, and there aren't
         | that many. Compare that to Denver which is not only 1-2 hours
         | away, but has an airport which receives tons of people from the
         | west coast and beyond.
         | 
         | There is also virtually 0 traffic from the north because it's
         | an international border and more remote wilderness.
        
           | justinator wrote:
           | _> I don't know what the furthest distance from a road is_
           | 
           | Looks around 11 miles,
           | 
           | https://www.peakbagger.com/map/bigmap.aspx?t=W&l=CT&d=10&cx=.
           | ..
        
           | mauvehaus wrote:
           | You're probably aware of this, but motorboats are allowed (up
           | to some size and power restrictions) on e.g. the Moose Lake
           | chain to Basswood/Prairie Portage, large parts of Basswood,
           | and Snowbank, among others. They'll also land the forest
           | service's Beaver on any lake big enough for a medical
           | evacuation (I facilitated one from another group from Alice
           | years back).
           | 
           | Not trying to pick nuts, I'd just hate for someone to show up
           | up there and be very disappointed by the presence of
           | motorboats.
           | 
           | If you're planning a trip, it's not hard to avoid them. Talk
           | to your outfitter and do a couple of portages and you'll see
           | none. Do a couple more portages and you can go a couple of
           | days without seeing other people.
           | 
           | Oh, and get up-to-date maps. I was using ones from the summer
           | I guided some 15 years later, and found a campsite or two
           | that had been closed since mine were printed. Some bonus
           | paddling resulted.
           | 
           | Hol-Ry!
        
         | paddy_m wrote:
         | I miss driving across vast stretches of emptiness in Utah,
         | which is somewhat related. I would see these vast spaces and
         | want to explore, via bike, dirt bike or foot.
         | 
         | Another fun, related cartography activity is to find the
         | longest drive between two very close points on a map. You're
         | invariably going around a mountain with pretty scenery.
        
         | PaulDavisThe1st wrote:
         | I feel like not enough people have noted that "furthest point
         | from a road" is a _very_ different metric than  "longest
         | straight line without crossing a road" [0]
         | 
         | It's clear to me that you got that distinction, but several
         | replies seemed to have missed it.
         | 
         | [0] and specifically, in the UK, the middle of Rannoch Moor is
         | the most remote from any road, but doesn't much in terms of
         | longest straight line without a road crossing. And likewise,
         | the line in TFA is actually not very far from a road at any
         | time.
        
         | kleiba wrote:
         | I currently live in central Europe, and just recently had a
         | conversation with a coworker who is local. He told me how he
         | has always been quite impressed with how much _space_ there is
         | North America - which is to say that you actually can get away
         | from civilization quite a bit if you want to. Of course, that
         | 's not true for all areas of America but it seems way more
         | difficult to just get away in central Europe.
        
           | justinator wrote:
           | Funny that I go to Europe and impressed by how many _trains_
           | there are.
        
           | [deleted]
        
           | bombcar wrote:
           | Central Europe is more properly compared to the East or
           | Midwest in the USA; because the ability to grow stuff means
           | that even the very rural parts of those areas of the USA are
           | sparsely populated, but populated (you're never more than a
           | few miles from a house kind of thing).
           | 
           | But once you hit the west of the Rockies, it becomes VERY
           | EMPTY unlike anything in Europe, perhaps comparable only to
           | the Ghobi Desert or similar places in Asia.
        
         | bombcar wrote:
         | Part of the issue is that the vast western BLM land in the USA
         | is mostly some variation of desert; and that desert is very
         | VERY easy to put a road down on, if all the road is a slightly
         | graded path.
         | 
         | I assume you've seen https://www.projectremote.com/remote-
         | statistics/ (updated from defaced/hacked domain)
        
           | detaro wrote:
           | easy to create a road, and little that will destroy an old
           | and little-used one.
        
             | justinator wrote:
             | There is the pressure to build the road in the first place,
             | as there is about 1.5 billion cars in existence. Having it
             | impossible to find really truly remote places is a symptom
             | of just how much cars have absolutely changed the world.
             | 
             | There's the idea that for every car, you need three car-
             | sized spaces to support it: The area you park the car, the
             | area you drive the car, and the area you'll be driving the
             | car to. That's a lot of roads.
        
               | bombcar wrote:
               | Many of the dirt roads predate the car; cars almost
               | universally demand _paved_ roads, but wagons want roads,
               | too.
        
               | justinator wrote:
               | There are more cars in existence now, than every wagon
               | every built in all of human civilization combined.
               | 
               | There are also now, more roads.
        
               | jstanley wrote:
               | If we're being pedantic, I think you only need 2 of those
               | spaces while driving the car, and only 1 while it's
               | parked.
        
               | detaro wrote:
               | Somehow I doubt that's very relevant to random wilderness
               | roads in the desert
        
           | burkaman wrote:
           | Was this site hacked to add the crypto reference on the home
           | page? The rest of the site is very interesting and has
           | nothing to do with crypto, but it seems like a lot of
           | internal pages have been removed and the links redirected to
           | that weird home page.
           | 
           | Edit: Yes, looks like the site has been defaced https://web.a
           | rchive.org/web/20170611015950/https://remotefoo.... Very sad,
           | seemed like a really cool project and now a lot of pages are
           | unreachable with going through archive.org. Even the search
           | doesn't work.
           | 
           | Edit 2: I think they lost control of that domain, but they
           | have a new site at https://www.projectremote.com/
        
             | bombcar wrote:
             | Thank you - I'll update.
        
           | justinator wrote:
           | hmm, I think though there's a reason that the road exists -
           | even in the desert? Probably to mine or a mine town
           | originally? Same with all the roads in the mountains.
           | Resource extraction and motor vehicles kinda go hand in hand.
        
             | bombcar wrote:
             | Most of the ones I've encountered in the high desert have
             | things like ancient mining claims or tiny towns somewhere,
             | but others appear to simply be 4WD trails that have been
             | used "enough". According to the link; Wyoming has the
             | furthest at 21 miles from a road (which is a circle
             | containing 1385 sq miles).
             | 
             | Since distance from a road is a circle, the sq miles needed
             | to get far from it go fast quickly, even six miles is 113
             | sq mile, and since it's likely a road alongside one edge,
             | you're talking a square of land at least 144 sq mile.
             | 
             | The only things that big are usually parks/nature reserves
             | of some kind, and they often have fire roads or other
             | accesses built for reasons (including people camping, etc).
        
               | justinator wrote:
               | I've got that point as somewhere near the middle of of
               | Yellowstone NP. The farthest point in Rocky Mountain
               | National Park from is 6. It takes the wind out of me.
        
               | bombcar wrote:
               | In some weird way it's the "no most boring number"
               | problem; if a point is the most remote, then there's a
               | reason to build a road to it, because it's a point of
               | interest, but doing so kills the remoteness.
               | 
               | Personally given how wide a range of things "dirt road"
               | covers, I would consider paved road to be the line - some
               | things that are dirt roads you can do 50+ mph down no
               | problem, others are literally impassible without the best
               | 4 wheel drive vehicles; and some not even that - they're
               | technically on the map but the road is overgrown so much
               | that you can barely get a motorbike down it; and once
               | you're using a motorbike you can go almost anywhere in
               | the world that humans can reach.
        
               | scythe wrote:
               | Depending on your definition of "mainland", you can get
               | even more remote in southern Louisiana on the peninsula
               | south of Fourleague Bay, southeast of the Atchafalaya
               | Delta. Google Maps shows it as around 26 miles from any
               | road.
               | 
               | But most of the corresponding "circle" will then be in
               | the ocean.
        
               | justinator wrote:
               | Ha - yeah, if the land is basically an island, there may
               | be an exception. If we look at the map from the article,
               | looks like they avoided major waterways as well.
        
               | bombcar wrote:
               | One of the terms thrown around is "navigable" - which
               | includes things like roads, airports, and waterways that
               | can be traversed by (usually motor) boat.
               | 
               | Obviously since helicopters can land on Mt Everest, you
               | ignore those.
               | 
               | https://unofficialnetworks.com/2022/12/29/helicopter-
               | land-su...
               | 
               | One of the amusing things is that it is not that hard to
               | get away from _people_ - you only need to be about 270
               | miles from the nearest human to get a situation where
               | that nearest human is in the International Space Station
               | flying overhead. But you have to map out airliner routes,
               | etc, as planes will fly over otherwise empty land /ocean.
        
             | reaperducer wrote:
             | _Probably to mine or a mine town originally?_
             | 
             | Very often yes.
             | 
             | But also as access roads to infrastructure like long-
             | distance power transmission lines, pipelines, or remote
             | communication towers.
             | 
             | Also, there are a lot of fire roads. People don't think of
             | the desert as a place of wildfires, but the desert does
             | indeed burn.
        
         | xcskier56 wrote:
         | There's a fun website that I saw that listed all of the most
         | remote points in the lower 48. This is defined as farthest away
         | from a road.
         | 
         | Amazingly, given all of the vast land in the western US, the
         | furthest you can get from a road is only a little over 20
         | miles. This is in the middle of the Thoroughfare in Yellowstone
         | NP.
        
           | colechristensen wrote:
           | I wonder what the definition of road here is. Plenty of roads
           | are just tracks in the dirt where enough vehicles have
           | traveled to leave a mark like logging roads and such.
        
             | ghaff wrote:
             | Unpaved road covers a lot of ground in the western US--from
             | unpaved but well-graded and maintained to you'd better have
             | high-clearance 4WD and know how to use it--in appropriate
             | weather. And the map databases aren't necessarily great at
             | distinguishing things at the edges.
        
               | reaperducer wrote:
               | _And the map databases aren 't necessarily great at
               | distinguishing things at the edges_
               | 
               | Very true. I once had Apple Maps direct me down a one-
               | lane road that turned into gravel 20 miles later, then
               | into dirt 20 miles after that, and then eventually became
               | just ruts in the sand used by horses and mules.
               | 
               | I'm sure it was used as a "road" to calculate distances
               | between places, but it was in no way a road.
        
               | bombcar wrote:
               | I have a general "do not leave paved roads when following
               | GPS" rule to prevent things like death (which have
               | occurred). You should know what you're doing and be
               | prepared if you leave the pavement.
        
               | reaperducer wrote:
               | This was in an area where dirt and sand roads are more
               | common than paved roads, so it made sense to follow the
               | arrow until it became a track.
        
             | justinator wrote:
             | Definition is basically, is it drive-able? Can you
             | physically get a car to a point on the road?
             | 
             | An old road could exist, but is in Wilderness, so it
             | somewhat doesn't count, as you can't drive it for legal
             | reasons.
        
               | ghaff wrote:
               | "Drivable" isn't a very useful definition at the margins
               | because it depends on who is driving, in what kind of
               | vehicle, and in what kind of weather.
        
               | justinator wrote:
               | That is why I added a few more sentences to the working
               | definition in hopes to clarify it and to thwart off
               | contrarianism, which inevitably someone here is going to
               | gleefully practice.
        
             | BuyMyBitcoins wrote:
             | Road implies "path for vehicles" in my mind, but I presume
             | something that might be called a path or a trail could
             | count as a road as well.
        
           | robocat wrote:
           | Furthest distance in New Zealand is probably on the coast
           | near West Cape in Fiordland National Park: about 70km from
           | roads from what I can tell (the road to Lake Hauroko and the
           | road to Deep Cove/Doubtful Sound via Manapouri Dam).
           | 
           | Looks like there are some amazing walking tracks down there:
           | https://www.doc.govt.nz/parks-and-recreation/places-to-
           | go/fi...
        
       | regularjack wrote:
       | > 'a paved surface for vehicular use'
       | 
       | The author is assuming that all "restricted access" roads are
       | unpaved, which I think is unlikely to be true. I wonder if
       | there's data about which roads are paved.
       | 
       | Regardless, very interesting stuff, and great analysis.
        
         | pornel wrote:
         | In the UK even "public" roads deep in the countryside are often
         | unpaved.
        
       | sixothree wrote:
       | I remember talking to a group of people about the "vastness of
       | America" and mentioned that no matter where you go you're never
       | really more than 20 miles from a road. Not a single person
       | believed me. I never did follow up with investigation. But I do
       | sometimes ask people this question.
       | 
       | Ultimately, people seem to think there are these great patches of
       | untouched land on a vast scale where it simply doesn't exist.
        
         | hgsgm wrote:
         | I found a reference at http://remotefootprints.org/ linked from
         | BBC, but it looks like the site was hacked by a Bitcoin/crypto
         | scammer.
         | 
         | Anyway, they claim that in USA rhat 22miles is the farthest you
         | can get from a road of any kind that supports a vehicle, and
         | still be in "developable" terrain.
         | 
         | That would exclude mountains, lakes, floodplains, and maybe or
         | maybe not forests (because they could be cut down?)
        
           | burkaman wrote:
           | I think they lost control of that domain but they have a new
           | site here: https://www.projectremote.com/
        
         | [deleted]
        
         | adrianpike wrote:
         | Yep, even the furthest spot in Wyoming in the Thorofare
         | wilderness complex is something like 19 miles out from a road.
         | 
         | One thing to keep in mind is that only a few miles over rugged
         | terrain can be a _lot_. A few miles away from a remote forest
         | road in the wrong direction and you might not see any people
         | for years and years.
         | 
         | I do search and rescue out here, and even with helicopters it's
         | pretty vast;
         | https://www.peakbagger.com/map/bigmap.aspx?t=W&l=CT&d=9&cx=-...
        
           | technocratius wrote:
           | > A few miles away from a remote forest road in the wrong
           | direction and you might not see any people for years and
           | years.
           | 
           | This is essentially what happened to this McCandless guy in
           | Alaska. That book about him - _Into The Wild_ , by Krakauer -
           | is super well written and a very interesting story. The movie
           | based on the book is also quite well produced.
        
         | insane_dreamer wrote:
         | Pretty sure Nevada has places you can go that are 20 mi from a
         | paved road.
        
           | bombcar wrote:
           | Road vs paved road does a lot of heavy lifting.
           | 
           | But even so if you calculate the area needed to be 20 miles
           | from a road, it gets quite vast quickly (it has to be a
           | circle 20 miles in radius).
        
             | sixothree wrote:
             | I kinda want to find out now.
        
               | bombcar wrote:
               | You'd want to search using GIS tools, and then try to
               | verify the pavidity via aerial photos. Around Table
               | Mountain might be a place to start. 20 miles is a long
               | way, and 40 miles is even longer between roads.
               | 
               | For comparison, the entirety of Mount Rainier National
               | Park is less than 20 miles on a side. So you're looking
               | for someplace you can fit Mount Rainier on _all sides_ of
               | you.
        
       | ryandrake wrote:
       | Not entirely clear from the article, but it looks like it might
       | be a "straight" line on a Mercator-projected map, in other words,
       | a rhumb line[1]. So that technically doesn't answer the question
       | "what (and where) is the longest distance _you can walk in a
       | straight line_ [...]?? " When you are walking in reference to a
       | compass (let's simplify and assume it references True North), you
       | are actually making a gradual turn to stay aligned with your
       | angle to the meridians. Especially at high latitudes like in
       | Great Britain. Instead, he should be looking for the longest
       | Great Circle[2] line from point to point, which may, in reality,
       | be in a very similar location because for short distances, great
       | circles often line up very closely with rhumblines.
       | 
       | The author is a founder of a mapping company, so he very likely
       | knows this, and the article is aimed at a more layman audience
       | who likes to play around with Google Maps and such.
       | 
       | 1: https://en.wikipedia.org/wiki/Rhumb_line
       | 
       | 2: https://en.wikipedia.org/wiki/Great_circle
        
         | codeflo wrote:
         | Mercator maps are conformal, which means that over small
         | distances, shapes are preserved, though you do have to
         | correctly adjust the distance scale. So how much does that
         | matter over 76 km, would the bend in the line even be visible?
        
           | ryandrake wrote:
           | Yea, admittedly at these distances (<100km) the difference
           | will be very small unless at extreme latitudes.
           | 
           | Looks like the points are at approximately N57deg18.280',
           | W3deg55.948' -> N56deg54.152', W4deg56.664' if anyone wants
           | to do the math. My guess is the rhumb line and GC route
           | differ by no more than a few meters.
           | 
           | I was hoping the article would go more into how they searched
           | the data and found the points. An exhaustive search of all
           | points in the U.K. would obviously be computationally
           | prohibitive. Maybe create millions of polygons where the
           | edges are roads, and sort them by area to reduce the search
           | space? From the article's text it looks like he "eyeballed"
           | the map to find empty areas to focus on, which is
           | unsatisfying :)
        
             | bluenose69 wrote:
             | I get a bit over 200 metres from the following R code.
             | (Edit: I forgot how to format code for HM, sorry.)
             | library(oce)         lat <- c(57+18.280/60, 56+54.152/60)
             | lon <- -c(3+55.948/60, 4+56.664/60)         m <- lm(lat ~
             | lon)         # Find points along a great-circle route
             | gc <- oce::geodGc(lon, lat, 0.001)         # 'scale' is
             | distance associated with 1 degree latitude shift
             | scale <- geodDist(mean(lon), mean(lat), mean(lon),
             | mean(lat)+1)         # 'e' is latitude shift from great-
             | circle route to 'straight' line route         e <-
             | scale\*sapply(seq_along(gc$longitude),
             | function(i)                 gc$latitude[i] - predict(m,
             | data.frame(lon=gc$longitude[i])))
             | plot(gc$longitude, e, type="l",
             | xlab="Longitude [degE]",  ylab="Distance error [km]",
             | col=2)         max(e)
        
               | codeflo wrote:
               | I'm not familiar with R, but the lm(...) line looks like
               | it's linearly interpolating the latitude and longitude.
               | However, that's not what straight lines in a Mercator
               | projection are. You might be confusing it with the
               | cylindrical projection.
               | 
               | The Mercator projection stretches things away from the
               | equator vertically to compensate the horizontal
               | stretching, in order to preserve local shapes. This makes
               | it a bit better for these kinds of local measurements
               | than one might think at first glance.
        
               | bluenose69 wrote:
               | Yes, `lm()` linearly interpolates. Thanks for pointing
               | out my error.
        
               | codeflo wrote:
               | To be fair, I'm not sure this will actually make a
               | significant difference. :) Even 200m wouldn't be a huge
               | error.
        
               | bluenose69 wrote:
               | I tried a computation that I think may be correct. It
               | gives 319 metres of northing separation between rhumb and
               | creat-circle paths. In case it's of any interest, the R
               | code is below.                   # Northing distance
               | between rhumb and great-circle paths.
               | library(oce)         lat <- c(57+18.280/60, 56+54.152/60)
               | lon <- -c(3+55.948/60, 4+56.664/60)                  #
               | Great-circle path, first in longitude-latitude space, and
               | then         # (for Mercator projection) in easting-
               | northing space.         gc <- oce::geodGc(lon, lat, 0.01)
               | # same results for 3rd arg any value < 0.01         gcXY
               | <- lonlat2map(gc$longitude, gc$latitude,
               | projection="+proj=merc")                  # Create
               | function, f(easting), that computes northing value on
               | # a rhumb line.  We need this to make the two lines share
               | easting         # values.         p <-
               | oce::lonlat2map(lon, lat, "+proj=merc")         m <- lm(y
               | ~ x, data=p)         X <- seq(p$x[1], p$x[2],
               | length.out=length(gc$longitude))         Y <- predict(m,
               | data.frame(x=X))         f <- approxfun(X, Y) #
               | interpolating function                  # Compute the
               | northing error.         northingError <- f(gcXY$x) -
               | gcXY$y         maxNorthingError <-
               | round(max(abs(northingError)), 1)
               | message("maxNorthingError=", maxNorthingError, " [m]")
               | plot(gcXY$x, northingError, type="l", xlab="Easting [m]",
               | ylab="Northing error [m]")         mtext(paste("max
               | northing error ", maxNorthingError, " [m]"))
        
         | cies wrote:
         | > Without crossing a pub road
         | 
         | Or crossing water.
         | 
         | I think given this constraints a line from any non-pub-road,
         | non-water place in GB to the center of the earth is the longest
         | straight line, without considering space bending around mass.
         | :)
        
           | jodrellblank wrote:
           | The question was "what (and where) is the longest distance
           | you can walk in a straight line..." so that rules out the
           | center of the Earth.
        
             | [deleted]
        
         | timthorn wrote:
         | Specifically, the projection used is the Ordnance Survey
         | National Grid projection, which is Transverse Mercator.
         | 
         | The OS published a good introductory (but detailed) guide some
         | years ago:
         | https://www.ordnancesurvey.co.uk/documents/resources/guide-c...
        
         | rootusrootus wrote:
         | If it were to get technical enough to differentiate between
         | rhumb and great circle, then maybe it should factor in
         | elevation changes too.
        
           | 0_____0 wrote:
           | If you include elevation then you have to include tolerance
           | for deviation. I live in an old house, so I can't even walk
           | across the room without a vertical deviation of some sort :)
           | 
           | Edit: My point here is that if you try to plot a literal
           | straight line through 3D space, it will be necessary to allow
           | some amount of deviation in one axis. Else your longest 3D
           | line will be the distance between your first two points.
        
           | rdlw wrote:
           | Then it becomes a coastline problem, with different answers
           | depending on the resolution of your elevation data.
           | 
           | Great video on this from Matt Parker (focusing on area in
           | this case): https://youtu.be/PtKhbbcc1Rc
        
           | crznp wrote:
           | He does: 75.9km on the map, 77.0km when accounting for
           | elevation. With the caveat: "Well, it's never as much as I'd
           | think and it depends upon the accuracy of your terrain model"
        
             | ta1243 wrote:
             | That number surprised me, but because of how much extra it
             | was rather than how little extra -- I always assume it's
             | negligable, but in this case was over 1%
        
               | teruakohatu wrote:
               | I also agree it seems like a lot. If there was 3000m of
               | elevation gain and 3000m of elevation loss, I would only
               | expect a couple or hundred extra meters of distance
               | walked. 77.23 [?] sqrt(77^2+(3+3)^2).
               | 
               | Reading total elevation gain/loss from his graph it hard
               | but 3000m up and down seems about right.
        
               | OscarCunningham wrote:
               | The average gradient of Scotland is 19.3%.
        
               | [deleted]
        
       | cdaringe wrote:
       | Loved it. Seemed like it was discovered by manual search
        
       | ks2048 wrote:
       | This is mainly about getting getting the correct roads data, but
       | I would be more interested in the algorithmic question: given a
       | roads network, how do you find the longest line not crossing a
       | road?
       | 
       | The linked blog post mentioned they "calculated the areas of all
       | the polygons to identify the largest ones". Just drawing some
       | lines on a plane, there are not necessarily any polygons. And
       | they say start and end points must be on vertices, but I'm not
       | sure why. So it's not very clear.
        
         | OscarCunningham wrote:
         | This paper https://arxiv.org/abs/1804.07389# uses an algorithm
         | called 'branch-and-bound'.
        
       | bediger4000 wrote:
       | > Crown copyright and database rights 2023.
       | 
       | Do i, as a US citizen, have to respect Crown Copyright? I mean,
       | the USA originated in a revolt against that very same crown. The
       | USA is by constitution and temperament forbidden from giving out
       | titles and such. We respect free markets, content creators and
       | their successors in interest here.
        
         | dukeyukey wrote:
         | No need to be edgy. Crown copyright is just the phrase used for
         | copyright created when the UK (And Canada, and Australia, and
         | others) create copyrighted content.
         | 
         | It's nothing special.
        
         | Veen wrote:
         | The Crown isn't really the monarchy when used in this sense and
         | it doesn't have much to do with titles and such. It's a
         | synecdoche used to refer to the UK government (and the
         | governments of some commonwealth countries). Crown Copyright is
         | the copyright the government holds in the material it creates.
         | In this case, the Ordnance Survey, which is a UK government
         | agency.
         | 
         | Whether you have to respect that copyright is a different
         | matter, although it may be unwise to use Ordnance Survey
         | mapping data for commercial purposes without a license.
        
           | dragonwriter wrote:
           | > The Crown isn't really the monarchy when used in this sense
           | and it doesn't have much to do with titles and such. It's a
           | synecdoche used to refer to the UK government
           | 
           | That's also the Crown the US was revolting against, so...
        
         | eertami wrote:
         | I think it's actually the US which is more likely to take issue
         | with you for breaking the copyright, than the UK would.
         | Considering the US publishes an annual report on copyright/IP
         | rights enforcement about it's trading partners that it deems to
         | be insufficient[0].
         | 
         | [0]:
         | https://ustr.gov/sites/default/files/USTR-2016-Special-301-R...
        
         | Woeps wrote:
         | Uhm, kinda, it depends. Overall Copyright is all mushed
         | together under some kind of global agreement right?
         | 
         | Because must I remind you, of your post of an hour ago:
         | "property rights are paramount." ;)
        
         | lljk_kennedy wrote:
         | Technically, legal proceedings could be taken against you in
         | the UK. Realistically - most of the stuff covered by Crown
         | Copyright falls under the Open Government License and is free
         | to use once attributed.
         | 
         | https://www.cla.co.uk/crown-copyright
         | 
         | https://www.nationalarchives.gov.uk/doc/open-government-lice...
        
         | matthews2 wrote:
         | The United States is party to the Berne Convention, so yes.
        
         | bigdollopenergy wrote:
         | In as much as anyone has to respect the copyright coming from
         | any jurisdiction they are not in. Which for the most of the
         | world generally means that, yes, you do have to respect it. It
         | being the UK and your historical reasoning isn't very relevant.
         | 
         | One of the main things that allows global trade to happen as
         | freely as it does, is countries cooperating so that copyright
         | can be legally enforced across them. The resulting court cases
         | are likely to be less actionable if you have no presence there,
         | but you can be sued in that country for breach of copyright and
         | have a judgement placed upon you. It's bilateral, a Brit may
         | wonder the same thing about the US or any other country and the
         | answer would be the same.
        
           | InCityDreams wrote:
           | The Pirate Bay disagrees. They rather splendidly told the usa
           | to gtfo, as did kim dotcom. Ymmv.
        
         | Doctor_Fegg wrote:
         | > We respect free markets, content creators
         | 
         | That's awesome. Please respect the content creators at the
         | Ordnance Survey then.
        
         | swarnie wrote:
         | Since the US don't extradite even for serious offences You can
         | probably just ignore it and be tried in absentia if caught and
         | prosecuted.
         | 
         | You'll have to join the 66% of your countrymen who can't travel
         | abroad however.
        
           | [deleted]
        
           | drstewart wrote:
           | Can't is a strong word to use word for people who opt not to
           | have a passport.
           | 
           | I'd use that same logic to then say 99.9% of Europeans can't
           | travel abroad since they don't have a valid airline ticket in
           | their possession. If your response is "well they can just get
           | one!" then maybe you should rethink your argument.
        
             | tialaramex wrote:
             | > I'd use that same logic to then say 99.9% of Europeans
             | can't travel abroad since they don't have a valid airline
             | ticket in their possession.
             | 
             | That doesn't make any sense, you can _literally_ walk to
             | foreign countries from most of Europe. Because of Schengen
             | large parts of the EU you don 't even need any paperwork,
             | the rationale is that it was legal for you to be on that
             | side of the border, you strolled over onto this side,
             | chances are you're legal here too.
             | 
             | If you're in a vehicle (which again, you can walk, it's not
             | mandatory) the Schengen internal borders have no permanent
             | checks. During COVID some of them were closed, and once in
             | a while somebody might put up police stops - like they
             | would for drunk driving (Americans surely have that right?)
             | but in general in Schengen the country borders matter only
             | slightly more than your US state borders do.
        
               | drstewart wrote:
               | >That doesn't make any sense, you can literally walk to
               | foreign countries from most of Europe
               | 
               | Replace "abroad" with overseas then.
        
               | hgsgm wrote:
               | Most people of Europe does not currently have enough food
               | and water to make a trip across a national border, if we
               | are still talking about arbitrary temporary constraints.
               | 
               | Almost no one in Great Britain can travel to the
               | Continent unless they are already in a boat.
        
               | dukeyukey wrote:
               | How long do you think it takes to go to a foreign
               | country? Couldn't a Brit just take the Eurostar to Paris?
        
               | swarnie wrote:
               | I'd love to know where you get your news.
        
               | crote wrote:
               | ... what?
               | 
               | I think you are greatly overestimating the size of many
               | European countries. A significant fraction of the
               | population lives within 75 miles of a national border.
               | That's a bottle of water and a snack by car - if you're
               | feeling thirsty when you leave. If you go by bike you
               | might want to pack a lunch, but that's about it.
               | 
               | If you have a job, _any_ job, you have the means to be in
               | another country tomorrow evening.
        
               | Lio wrote:
               | This is such nonsense.
               | 
               | People in the UK can travel to Northern Ireland, part of
               | the UK, and legally walk into the Republic of Ireland, an
               | EU member nation. So the point still stands.
        
               | inglor_cz wrote:
               | Interestingly, paperless travel was the norm in Europe
               | before 1914, too, though there was no Schengen. Happier
               | times before the war tore down mutual trust among
               | countries.
               | 
               | Only the Russian empire and the Ottoman empire required
               | passports from foreign visitors.
        
               | Godel_unicode wrote:
               | > That doesn't make any sense
               | 
               | They know. That's the point.
        
               | rjsw wrote:
               | There can be customs checks at or near Schengen borders.
        
               | crote wrote:
               | Yes, just like two thirds of Americans can encounter a
               | customs check on their daily commute because they live
               | within 100 miles of a border.
               | 
               | Schengen borders _can_ have customs checks, but only
               | temporarily in nature as a last resort in case of a
               | serious threat to public policy or security, and in such
               | a way as to impose the absolute minimum of restrictions
               | possible.
               | 
               | In practice Schengen borders are comparable to state
               | borders in the US. Sure, they _technically_ are borders,
               | but in practice it is just a line drawn on a map. It is
               | not uncommon for European armies to accidentally
               | "invade" another country because they took a wrong turn
               | during an exercise.
        
             | swarnie wrote:
             | No i think its accurate.
             | 
             | At the point of asking "Can you travel abroad?" the answer
             | for 67% is "No"
             | 
             | Also as a European i can walk to another country now before
             | nightfall if you pack me some sandwiches and promise me a
             | bed/pint when i arrive.
        
             | Woeps wrote:
             | Funnily enough you can go to most countries in the EU
             | without a passport or a airline ticket if you're European.
             | (you only need an ID card)
             | 
             | But I digress and think you're right. Probably lots of
             | people simple don't need/want a passport to travel outside
             | of the US. Otherwise they would have had one
        
               | RamblingCTO wrote:
               | you might not even need an ID practically, just legally.
               | I've never been checked at borders or whatever in Europe.
               | Not even when flying to Madeira or exiting/entering the
               | Geneva airport, which is not EU.
        
             | Lio wrote:
             | You're assuming you need a valid airline ticket to travel
             | abroad in Europe, you don't.
             | 
             | It's perfectly possible to travel abroad in Europe without
             | any form of ticket. You can just drive, walk, cycle or sail
             | and many people do regularly.
        
               | Godel_unicode wrote:
               | They're explicitly not making that point. They're in fact
               | arguing that "can't" is a weird choice of word for which
               | the post they're responding to has drawn an extremely
               | arbitrary line.
               | 
               | If anything, you and (at the moment) all of your siblings
               | are helping explain just how arbitrary the line is.
        
               | ta1243 wrote:
               | Is it not possible to drive, walk, cycle or sail from the
               | US to Canada or Mexico?
        
               | Lio wrote:
               | Not legally without a passport.
        
             | qwytw wrote:
             | > 99.9% of Europeans can't travel abroad
             | 
             | Some of them and I'm guessing more than 0.1% could just
             | walk to another country by midnight (it's 5PM CET). And way
             | more than that if they set off next morning.
        
               | crote wrote:
               | In seven hours I can leave The Netherlands, cross
               | Belgium, Luxembourg, France, Switzerland, and end up in
               | the southern part of Germany. Give me two more hours and
               | I can visit Liechtenstein, Austria, and Italy too.
        
           | jcranmer wrote:
           | Traveling internationally from the US is a major trip in a
           | way that it's just not in the EU.
           | 
           | From Edinburgh, you can reach 9 foreign countries in 1000 km:
           | Norway, Sweden, Denmark, Germany, Belgium, Netherlands,
           | Luxembourg, France, and Ireland. That's on the edge of
           | Europe! If you're in Vienna, it's a whopping 31: Denmark,
           | Sweden, Latvia, Lithuania, Belarus, Poland, Ukraine, Russia,
           | Moldavia, Bulgaria, Greece, Italy, France, Belgium,
           | Netherlands, Luxembourg, Germany, Czechia, Switzerland,
           | Slovakia, Monaco, San Marino, Vatican City, Slovenia,
           | Croatia, Northern Macedonia, Montenegro, Serbia, Bosnia,
           | Kosovo, and Hungary, with Turkey and the UK juuuust out of
           | reach.
           | 
           | From the US, if you live in Miami, a whopping four countries
           | are within 1000 km: Cuba, Bahamas, Jamaica, and the UK (via
           | its offshore islands). For most of the US, it's just one--
           | either Canada or Mexico. Only if you're in Puerto Rico can
           | you access a large number of countries in a short distance,
           | and that's mostly because almost every Antilles island is a
           | different independent country.
           | 
           | Or another way of putting it, in the distance it takes to get
           | from the third largest city in the US (Chicago) to the
           | largest (New York), it is hard to find a straight line in
           | even the largest European countries that _keeps_ you in the
           | country!
        
           | ledauphin wrote:
           | this is an interesting statistic. I'd love to have a
           | reference!
        
             | killjoywashere wrote:
             | Seems there are some stats running around about the number
             | of US citizens who hold passports.
             | 
             | https://www.statista.com/statistics/804430/us-citzens-
             | owning...
        
             | pacaro wrote:
             | https://today.yougov.com/topics/travel/articles-
             | reports/2021...
             | 
             | Apparently only 37% of Americans have a valid current
             | passport
        
               | ghaff wrote:
               | Even assuming that includes passport cards for
               | Canada/Mexico, unless someone lives near the border, an
               | international trip is a relatively big deal for a lot of
               | families. The US is big and has a lot of variety for
               | travel. It's really not surprising that a (sizable)
               | minority don't have near-term plans to travel
               | internationally.
        
               | pacaro wrote:
               | Absolutely agree. The socio-economic breakdown of the
               | research backs this up. It's very strongly correlated
               | with household income
        
       | gooseyman wrote:
       | Even cooler when you consider the right to roam
       | https://en.m.wikipedia.org/wiki/Freedom_to_roam
       | 
       | I live in a state that has very little public land, which would
       | make any attempt to walk it incredibly difficult
        
       | jkaptur wrote:
       | It looks like the author found this line using manual inspection,
       | but it seems possible to automate the search:
       | https://github.com/BradleyWood/Longest-Line-In-Polygon/blob/....
       | It might even be sufficiently fast, despite the O(n^3) running
       | time, because the 'n' is the number of points per polygon, not
       | total, and you can operate on each polygon in order of "wingspan"
       | (you can't stop once you find the longest straight line in the
       | longest polygon, but you can once your best line is greater than
       | the wingspan of the remaining polygons).
        
       | karaterobot wrote:
       | This is neat. I pretty easily found a 183km straight line through
       | central WA, from Wenatchee/Cashmere, NNW up to the Canadian
       | border. I can only visually confirm (via Google Earth) that it
       | doesn't cross paved roads though.
        
         | legitster wrote:
         | Uh, that can't be right. Highway 20 would cut through that in
         | the middle. Perhaps the software is a bit confused because the
         | highway closes during winters?
         | 
         | Also, the terrain profile of this straight line would make the
         | Scottish line look like a mini-golf course!
        
         | chihuahua wrote:
         | Since Route 20, a state highway, goes all the way across the
         | state, from west to east, and it's between Wenatchee and the
         | Canadian border, it seems to me that your straight line would
         | have to end when it intersects Route 20 somewhere near Diablo.
        
           | karaterobot wrote:
           | Yep, you're right. So, at most 148km.
        
       | corwinstephen wrote:
       | This would be a cool metric to use in various analyses. It's a
       | number that's guaranteed to be shrinking fast in today's world
       | and I'd bet there's a quality-of-life benefit to be had by trying
       | to optimize for growing it rather than shrinking it.
        
       | shrx wrote:
       | I see a new GeoWizard [1] series covering this in the future
       | 
       | [1] https://www.youtube.com/watch?v=M7w986ni7_g
        
         | sixothree wrote:
         | Even before I finished reading the headline, I assumed this was
         | part of his work.
        
         | neom wrote:
         | Was just coming here to comment about GeoWizard. Probably my
         | favorite YouTuber, straight line challenge is awesome, how not
         | to cross American is my favorite YouTube series by a long shot.
        
           | eCa wrote:
           | The "How not to travel America" playlist: https://youtube.com
           | /playlist?list=PL_japiE6QKWrCfn7NFL86bRSW...
           | 
           | Don't miss the similarly named Europe trip either, for anyone
           | new to GeoWizard.
        
         | spuz wrote:
         | Along those lines, someone else whose attempts I've really
         | enjoyed watching is Ally who recently uploaded the first part
         | of his attempt to cross Scotland in a straight line:
         | 
         | https://youtu.be/_Lcu6qL7NWs
        
       ___________________________________________________________________
       (page generated 2023-04-07 23:01 UTC)