Real-Time Collaborative Mapmaking 179
savetz writes "Throughout October and November, citizens of Amsterdam were invited to wear a GPS tracker as they went about their lives. Their whereabouts were forwarded to a server which created a map of the city in real-time, based on "the sheer movements of real people." The site includes aggregate maps, and those created by individuals, including a subway driver, cyclist, and marathon trainer."
thumbs up to big brother (Score:1, Offtopic)
Re:thumbs up to big brother (Score:1)
thumbs up to paranoia, you've come a long way.
next stop....every...
Oh no. it's already everywhere. Everyone's already infected. what do I do?
Re:thumbs up to big brother (Score:1)
(Courtesy of Bob the Angry Flower [angryflower.com])
Town Planning. (Score:2, Insightful)
Subway driver? (Score:4, Funny)
Re:Subway driver? (Score:2, Informative)
Re:Subway driver? (Score:2, Informative)
Re:Subway driver? (Score:1)
it really adds all of the charm to almost being run over by something every second on the street :) ring ring! ring ring!
Re:Subway driver? (Score:2, Funny)
Anyhow, as far as I recall, and my memory of Amsterdam is a little hazy (forget why, though), there *are* no subways. The public transport is electric streetcars [hotels-of-amsterdam.org] that kind of look like subways trains, but are much shorter and do not go under the ground. Warning: these things are actually very dangerous as they basically run on the sidewalks, have a tendency to sneak up on you, and need considerable room to stop. Be careful.
Dan
reminds me of the half a car joke (Score:5, Funny)
this reminds me of a story of two guys who at intersections would carry the back wheels of the car over wheel sensors. thus the traffic department would have to account for 64.5 cars passing through the intersections.
Re:reminds me of the half a car joke (Score:3, Funny)
Re:reminds me of the half a car joke (Score:1, Informative)
Re:reminds me of the half a car joke (Score:3, Funny)
I think I'd just drive with two wheels on the sidewalk... but then again I read
Reminds me of Cryptonomicon (Score:5, Interesting)
There's a great scene in Cryptonomicon where he writes about attaching lights to people's heads, then tracking the lights from a side view as they walk on and off street curbs. Graphing over time would produce a square wave, with sidewalks showing up as high lines, and streets as low lines.
The point is that Waterhouse is one of the kinds of people who could stare at boatloads of those graphs, and then emerge with an extremely detailed street map of London.
Re:reminds me of the half a car joke (Score:3, Funny)
Re:reminds me of the half a car joke (Score:1)
Re:reminds me of the half a car joke (Score:3, Interesting)
If you ever wonder why there are a number of cars sitting on the grass around intersections or interchanges that is what they are doing.
It would be a lot more fun to sit at the sensor and go back and forward...
Re:reminds me of the half a car joke (Score:1)
Oh c'mon, that's what pogo sticks are for! When I was 14 I bounced on one of those pneumatic car-sensor tubes at a dry-cleaner in my neighborhood with a pogo stick... I think the entire staff came out looking for me, and they were carrying big sticks.
Ah, the good 'ol days....
Re:reminds me of the half a car joke (Score:1)
I'd been wondering.
Cause $4,300 (or best offer) for some of those cars is outrageously high!
Re:reminds me of the half a car joke (Score:2)
Nah, just keep looping around and backing over it. That way some bean counter can get stuck trying to figure how the hell negative 14 cars went through the intersection this month
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Re:reminds me of the half a car joke (Score:1)
Of course, any dual axle truck would screw it up as well. Or a heavy unicycle.
I may also just be over analyzing the joke in which case I apologize.
Re:reminds me of the half a car joke (Score:5, Funny)
During the test phase, a few guys got two identical Volkwagens and put the license plate of one on the back of the other. They then drove one past one checkpoint and immediately drove the other past the next, clocking a respectable speed of Mach 15 or so. The people looking at the stored photographs thought they were looking at the same car in both pictures and were as puzzled as the system. Probably didn't stop them for sending these guys a speeding ticket anyway *shudders*
Re:reminds me of the half a car joke (Score:2)
I sure hope the fine wasn't $10 per mile over the speed limit
clocking a respectable speed of Mach 15
A real fun project would be to try to break light speed....
... in reverse!
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Re:reminds me of the half a car joke (Score:2)
Step 2: Hold first numberplate to speed camera on the A1
Step 3: A friend holds the second number plate to the next speed camera.
Adjust timing to a "believable" level, somewhere around 150mph. Wander around your competitors' carpark to gather numberplates to use...
If they gave it to me. (Score:1)
sweet! (Score:1)
Are you sure you don't already have it? (Score:2, Funny)
Let me get this straight. You want a subcutaneous chip that will turn yours and everybody else's brains into spiced pork and ham?
Minority Report (Score:2)
Could this finally do spam in? (Score:3, Insightful)
Yet when everybody's walking around with wristwatches connected to GPS and the 'net, and Joe's Pizza and Meg's Jewelry and Walmart and Target all want to spam your watch with their current specials as you walk within a hundred feet of their stores, people would (I hope) find that far too invasive and seek iron-clad control over the data they receive.
Unfortunately, I don't think this is the likely scenario. Probably most device manufacturers will provide a preference which permits you to turn off "unsolicited advertising" delivered via a certain protocol, but other delivery methods (http, pop3, etc.) will remain just as viable. Too bad.
Steve
Total information archive (Score:3, Redundant)
It gives new meaning to "Where Do You Want To Go Today", and sounds like a marketing/GOP wet dream.
Re:Total information archive (Score:1)
Re:Total information archive (Score:2)
Re:Total information archive (Score:2)
Apple switch story: And my PDA was all like 'Beep, Where the hell do you think *you're* going?'
Re:Total information archive (Score:2)
ummm oh nevermind.
Re:Total information archive (Score:2)
I don't understand.... (Score:1)
Re:I don't understand.... (Score:1)
Chris takes this project seriously [waag.org]
GPSr fun (Score:5, Interesting)
If you like this, you might like GPS drawing [gpsdrawing.com] too.
Drunk (Score:2, Funny)
Re:Drunk (Score:1)
Excellent! (Score:5, Interesting)
On the water, I found its articulated antenna and lack of waterproofing a liability. I used it in a housing (heavy-duty ziploc type), but found
it awkward. I just got a new Garmin eTrex, a 12-channel waterproof (1m for 30 min) unit that has the features I want. No internal maps, but I've never seen a handheld GPS that can compete with
the big-screen units in that department-- they're as good as an actual NOS chart.
If it were possible to do so, I would love to donate my map data to such a project - perhaps an open source map project? It could make for some exciting orienteering!
Re:Excellent! (Score:3, Interesting)
I spent two hours last month hacking round in a forest after going off the track while cycling; I'd _love_ to know where I went, and how close to various paths I must have gone...
Phil, just me
Re:Excellent! (Score:2)
Beyond Open Source, what about Open Data? (Score:2, Interesting)
The OSS community does a great job thinking about the pros and cons of open source *software* but doesn't do nearly so much work on the subject of open *data* with which to use the software. This issue is implicit in Slashdot favorites such as FOIA requests to reign in government, public domain vs. copyright issues, fair use, etc., but no one seems to formally frame the 'Open Data' issue in a way that motivates the same sort of response as does Open Source. We should start a new movement, parallel and complementary to OSS! Any takers? We need bandwidth and storage, just like everyone else... I see from Internic that mapdata.org is available. Someone want to hack out a good MySQL table structure to hold it all? Lemme know when we open the project on SourceForge... etc.
Be active!
Re:Excellent! (Score:2)
Yes. Do the math. The entire human population of the Earth can fit in Texas, with several hundred square feet of empty space around each person. A lot more if you group families together.
Re:Excellent! (Score:2, Informative)
I'm not the original poster, but I've been doing a similar thing for a while. Whenever I go on a trip, I map it out with my etrex, then upload the data into my computer using gpstrans (google should turn it up.) and a homemade cable.
Gpstrans can download tracks and waypoints. They are downloaded and stored as a tab-delimited ascii file. A really simple perl script turns then data into two columns of (x,y) coordinates that GnuPlot can display. You can even get GnuPlot to plot the tracks as pixel-sized points, and the waypoints as larger points on the graph.
Gpstrans and Gnuplot are both really simple, open source, and work great. I've had a lot of fun using this setup, and I've mapped a lot of highways in the southeast US.
hey... (Score:4, Funny)
real time vice-tracking (Score:5, Funny)
Re:real time vice-tracking (Score:2)
If they could get a representative sample of the population, this would be a great technology for city planners. What I would like to see are maps that instead of giving a week at a time - give cumulative maps for each half hour during weekday mornings and afternoons to identify which traffic routes to take or avoid.
Given enough devices with a real-time hookup and it would be invaluable in directing traffic around problem spots. The same could be done in the NorthEastern US by putting ez-Pass readers into all highway onramps and offramps that didn't charge a toll but tracked traffic flow. Of course this could also have serious privacy implications as well.
Re:real time vice-tracking (Score:2)
In a new survey studying the routes and streets used by Amsterdam inhabitants conducted over two months by the "waag society" a startling result is to be found: Less than five people are using the streets of the infamous "red light district". Following that discovery to its conclusion it is logical to predict the demise of the Amsterdam sex industry. Following the spread of this news, all the small entrepreneurs and owners of SME in the disctrict have formed an union to promote their wares and plan to combine forces to present the buyers with new incentives and and discounts like "buy one, get one free".
On the other hand, religious leaders around the world have rejoiced at the high moral Amsterdam inhabitants have chosen to follow despite the temptation, with the exception of his Holiness the Pope John Paul II who was heard muttering under his breath "damn, where will I go for my cardiovascular exercise now?" while the founder of the Church of Satan, Mr Anton Szandor LaVey, was found on the site of the tragedy where he issued a communique in which he deplored the current situation in Amsterdam and encouraged Amsterdams denizens of all sex to provide for the needy that may be left after the demise of this glorious industry by "taking a whore in your home and in your bed", and, "for the more evil of us blessed by your Dark Lord with pots of cash, to provide for the young, it is never too early to start a good education". He also encouraged those that do not have enough money to do so to "provide to the needs of the poor sod^H^H^Hconsumers who will suffer from the destruction of such a wonderful industry".
Ok, it didn't come ot as funny as I hoped but its 22:00 and my funny bone is already asleep, so bugger.
"How big is your world" (Score:5, Insightful)
The visualization technique that they use is really cool too -- it lets you see more vividly the areas that get traversed (cumulatively) more heavily.
That's great... (Score:1)
uh, hello? (Score:2, Funny)
I swear, when they finally start installing video cameras in everyone's houses, all they'll have to do is say they're BlueTooth enabled or XML-RPC enhanced and the geeks will eat it up.
Re:uh, hello? (Score:3, Insightful)
Tracking me to give me a speeding ticket every time my car's speed > 66 mph == bad... tracking me so that the world can know trafic's moving at 75 mph on route 3 good.
Re:uh, hello? (Score:2, Informative)
Some systems (like the vehicle locator systems) use a satellite uplink though to transmit the position given off by the GPS though. This is totally different than Big Brother stalking you just because you bought an eTrex
I tried this... (Score:1)
Re:uh, hello? (Score:4, Funny)
Average Geek: Screw you! You agent of MS...
Government Agent: What if I said that it ran linux?
Average Geek: Screw you...hmmm, did you say linux?
Government Agent: Yes, I did.
Average Geek: Does it support...
Government Agent: Ogg Vorbis? Yes, of course.
Average Geek: I'll take five.
Government Agent: Going to run a Beowulf, eh? Hehe...you crazy geeks.
Re:uh, hello? (Score:2)
I'll hack it so it does nothing except scan the digits of Pi to find the longest consecutive string of 4's.
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How can I do this? (Score:2)
-S
Re:How can I do this? (Score:3, Informative)
You'll need some software to gather your paths from the GPS, and some digital maps to overlay them on.
Some of the popular software is EasyGPS for the PC, and GPSy [gpsy.com] and MacGPS [macgpspro.com] Pro for the Mac. You can download a free version of each.
The maps are a little harder to come by though. Here is a list to get you started. [gpsy.com] Some are free, some cost up to about $100 depending on size, scale, and detail. You can scan in your paper maps and calibrate them in some software too.
I think this is really cool - I'd like to have a map of North America and see where all I've been
Re:How can I do this? (Score:1)
I want to make a map of my life travels :-)
Possible uses for tracking your life adventures:
Re:How can I do this? (Score:2)
Red Light (Score:2, Insightful)
Distributed mapping is cool (Score:2)
In a certain zone of Amsterdam... (Score:1)
Who do you trust? (Score:4, Insightful)
Re:Who do you trust? (Score:1)
Re:Who do you trust? (Score:3, Informative)
Overall this is an excellent demonstration of this kind of technology.
Re:Who do you trust? (Score:2)
TrafficDodger [trafficdodger.com] uses existing highway sensors and fancy AI search techniques to suggest fast routes in traffic for the LA area. Free, at least for now.
Why not me? (Score:4, Funny)
Oh, it wasn't funded? Never mind.
Ok I'm gonna strap a GPS on my... (Score:3, Funny)
Bad KITTY!!! ***death ray come down from the sky***ZAP! Fried cat found 2 miles away.
Well maybe not...
It's playing "Cat Chess"... (Score:3, Funny)
The rules (based upon observation) are pretty straight forward, and are as follow:
A point is scored by a cat that can simultaneously observe at least 2 other cats.
Any cat observed by 2 other cats simultaneously is out of the game.
That's it - so strategy plays a big part - on the one hand, a high vantage point lends itself to high scoring rounds, but has the increased danger of being spotted by other cats. These games can go on for days though, often ending only in a mass fight or when the competitors fancy some milk and maybe the chance to bat a small bird around for fun.
Where were you? (Score:1)
So, this way everyone would know that I skipped work on Friday, and spent it at the stip bar!
This is freeking cool (Score:1)
If you followed people around long enough... (Score:5, Funny)
APRS (Score:1)
Better Maps? (Score:1)
Interesting Concept, However..... (Score:1)
red light (Score:2)
those bright red blotches must be the smoke shops and red light district. high traffic!
Curiously... (Score:2)
having been to amsterdam (Score:1)
but seriously folks. that city is old, circular and downright confusing to find your way around. and that's when you're sober, after a couple of good coffee shop visits, forget it. everything looks the same (the locals should attest to this), and the city is a big horse shoe. so if you take one wrong turn you wind up who knows where!
hell. one night i spent 2 hours freezin my butt off, during the summer, at 3 am until i could find a decent sign.
i for one am glad to see gps put to a fun use.
Even better (Score:1)
Paul
I've been thinking about something similar (Score:3, Interesting)
But, because tiger maps are free, that is what is used. However, if you want to build your own talking GPS navigation system, using those maps is a bad thing - the routes would be all goofed up.
So, I have been considering doing something like these guys so there could be some way to get decent maps out there for free that will give better results.
However, I see a number of potential problems. First, you can't just turn on a GPS and start recording data. My Magellan 315 starts averaging when you sit still. Get under an obstruction and the data it records is all over the place. After only an hour of sitting you would have somewhere around 100 data points that don't exist. That would be a lot of work for someone to clean up.
The other problem I see is really related to participation. It's one thing if you are in a small town with 50 or so streets in it - you would probably be more apt to get your town fully mapped. However, living in the Big City, I only really travel a few streets during a typical month - mainly highways and interstates, with the occassional side street. Since the ways I travel always have a ton of traffic on them, that means most everyone else goes that way too - probably including a good number of people who might be participating in such a project as well.
Re:I've been thinking about something similar (Score:2, Interesting)
If the data is coming from a bunch of people who are wandering around for weeks, they'll probably run through the same area several times and generate several valid data points. Even more if they keep doing it for months.
Matching the raw data to actual locations is a different problem. Let's say we start with TIGER maps. Use speeds to locate and confirm the highway locations. People who enter/exit a freeway will show where the limited number of access points are, so now the location of those intersecting streets is known (if TIGER doesn't show the ramps, you might have to record them -- easy to do that if you care). Cars which use those known streets allow correlation of TIGER locations of those streets. Turns and cross traffic show intersecting streets -- counting number of blocks from highways allows confirmation of location of all individual streets (alleys would add some confusion). Streets with curves in them allow further confirmation of locations along the street. Patterns of traffic pauses show STOP signs or traffic lights. Areas with only interpolated data hint at tree cover or tall buildings.
Accuracy, precision and QA of spatial data (Score:3, Interesting)
That's one of the cans of worms I have been pondering deeply ever since I demo-ed a PostGIS based system that lets random users lodge spatial data.How on earth do you do meaningful QA on that quantity of data? Especially when many people are happy to use layers such as TIGER.
FWIW, I think that collecting raw GPS tracks is a low value activity. I think the most value will come from validated overlays put together in a Wiki fashion. Leave it to the Cave Clanners to maintain a Wiki style layer of drains and urban tunnels, leave it to the geeks to maintain a WiFi layer. Pull you favorite overlay sites together in your PDA and enjoy an augmented reality...
Xix.
Collaboritive Mapmaking? in AMSTERDAM? (Score:1)
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Remote controlled eyes (Score:4, Interesting)
Then, when you spot someone in a interesting place, you could get control of his camera for some time. Maybe there could be the option donate the guy $5 and ask him to move 100 feet left.... now that's a real big brother scenario :) Anyway, it could be fun too, to be "in the place" when something interesting happens...talking about Amsterdam...(red) lights, camera, action :)
I saw you... (Score:1)
Over time the lines might come close to crossing, but they never touch. Then one day it happens.
Two-timers need (should) not apply (Score:3, Interesting)
(Sorry: Former best friend).
But... How does it handle the canals? (Score:1)
Re:But... How does it handle the canals? (Score:2)
God, mine would suck. (Score:2)
Reverse to get home.
Toss in Home -> Fry's -> Home on the weekend.
Some people just shouldn't map out their lives. heh.
What's "citizens of Amsterdam"? (Score:1)
including a subway??? (Score:2)
I'll admit I can't view the site because of the /. effect, but Amsterdam has a subway? I sure missed seeing that while I was there. Doesn't seem like a likely thing for a city reclaimed from the ocean to have, and less likely for a GPS receiver to be able to track a subway driver.
subterrestrial GPS? (Score:2, Interesting)
So how exactly does a subway driver get a GPS
signal on the job?
And how do Australians get GPS? They're 6000 miles
below our feet!
Solves part of the problem (Score:2)
I did this last year (Score:2, Interesting)
You can see a sample of this type of map and learn a little bit about it at http://aprsworld.net/info/paper2002/giant-map-of-l a.php [aprsworld.net]
-James Jefferson
KB0THN
Find me [aprsworld.net]
GPS over GPRS (Score:3, Insightful)
Re:what about... (Score:2, Funny)
oh, come on. you didn't even take the time to make a referrer link so that people wouldn't immediately realize it's a goatse link. how do you expect to troll properly if people KNOW you are trolling?!
Re:Well (Score:1, Offtopic)