bike couriers as sensors

March 1st, 2008

Bike couriers as human sensors to track air pollution:

Cellphones used by bicycle couriers are monitoring air pollution in Cambridge, UK, and beaming the data back to a research lab.

The technique is made possible by small wireless pollution sensors and custom software that allows the phones to report levels of air pollutants wherever they happen to be around town.

The information can be mapped so that it can be viewed by the general public (and other bike messengers, who are on the front line of this exposure).

What is interesting is the multiplicity of possible applications for these mobile sensors (e.g., the use for noise sensing). I look forward to their discussion of interpolation techniques to maximizes this non-randomized data input.

social movements

February 28th, 2008

Following on my the previous post: autorickshaws are not just convenient modes of transport – they are also extremely fertile grounds for research (and ‘research’) and design (of fun afternoons).

I make as many weekend trips from work as possible. The weekend before Dehradun, I was in Jaipur, Rajhastan. My friend and I walked out of the train station early in the morning. Naturally, a swarm of rickshaw-wallahs offered us transportation, some forcefully.

Talking to one driver, we made the condition that we would only go with him if he let us drive. He agreed.

I believe the academic term for this is Action Research

Wearing sunglasses with a video camera embedded between the eyes, we went for a spin. We also asked Don, our driver, to survey his path while wearing the equipment.

As far as mobile phone communications are concerned, there was some of that as well. Once the video is edited, Derek (pictured, right) will have a clip of us exchanging numbers with Don, who became our private transport and part-time guide that weekend. Even Harshad, a friend from New Delhi who lives in Jaipur, was eager to take Don’s phone number. This proved to be a wise move, because Don called saying he had found a wallet on the seat. He delivered it the next day, and we went to do more ‘field work’.

fascinating phones, the real diversity

February 28th, 2008

Fritjof Capra, author of “The Web of Life” and, more famously, “The Tao of Physics”, gave a course Feb. 22-24 in Dehradun, Uttranchal State, India. It explored the dimensions of a new, emerging sustainability science based on ecological design… but I won’t go too deep into that here.

The site chosen was Navdanya, and organic ‘conservation’ farm that functions as a living seed bank – that is, the crops are not locked away, but actively cultivated. Vandana Shiva named the many pure varieties we ate for breakfast, lunch, and dinner (incidentally, Carlo Petrini was among the 30-odd participants as well).

So, if you ever get your hands on amaranth, I recommend you sauté it and fold it with honey.

But I digress. The sweetest part of the course was the bike ride through the neighboring villages I took during our afternoon siesta. I could not sleep or chat or read, and there was a clunker of a bike with my name on it. I made friends with Babalu, the go-to-guy on the farm with all the keys, and I rolled down to the ‘main road’ for a long ride.

Let me tell you what I saw:

  • A 600 litre water tank on wheels (portable but not potable) with a tropical sunset scene done in acrylics that graced the front. A cellphone icon and not 1 but 2 cellular numbers were painted on as well.
  • One boy biking on the other side of the street whistled, “Hallo,” which is not uncommon, except he was talking into an microphone wire on his red-dirt shirt.
  • The rental wedding band taking a break by the side of the road. Their marching band attire includes large red ankle bands and vests, on which the cellular number for the dispatcher was embroidered in gold thread.
  • 3-wheeled scooter taxis, AKA autorickshaws, seldom have mobile phones. However, the passenger in one was handing his phone to the driver-wallah so the person on the other end could discuss with him appropriate directions.*
  • Mechanics using mobile phones with white LED lights embedded in the front to see into a motorcycle engine. The Nokia 1100 and 1200 models, which have these mini-flashlights built in, are among the most popular model of phone sold in India and Africa, I’ve been told. My friend uses one to manuever his keys in his front door at night.
  • Many people sitting around, drinking tea, walking, biking, etc. while holding their mobile phone as it plays loud Hindustani music from a non-toll-free number.
  • It goes without saying that the course was excellent, enjoyable, enriching, etc., but it was all very abstract – Dr. Capra is a systems theorist and physicist by training. What was much more apparent was how low-cost mobile phones are facilitating a different, digital web of life. The implications for ‘sustainability’ are large though hard to define from a cursory village cruise on a bike, but are certainly food for thought.


    * This deserves an elaboration: the strategy of calling someone fluent in Hindi at or near your destination has been the salvation of many an expatriate, myself included. Often, the driver or you will have to figure out the route by landmarks. If you are lucky, a shopkeeper or passerby in the neighborhood can direct you once you get close. But – if you and the driver are lost, or you can’t remember the name of this or that street, temple, etc., or your rudimentary Hindi is inadequate for describing the particular location, a mobile phone can leapfrog these problems, saving time, money, and frustration.

    associated press discovers RFID

    February 26th, 2008

    In sensationalist fashion, the AP covers the growing ubiquity of computer chips, particularly in the form of radio frequency ID tags. How these tags will sniff out the geolocation of individuals and objects and sense their capacities. In one patent,

    Once somebody enters a store, a sniffer [sensor] “scans all identifiable RFID tags carried on the person,” and correlates the tag information with sales records to determine the individual’s “exact identity.” A device known as a “person tracking unit” then assigns a tracking number to the shopper “to monitor the movement of the person through the store or other areas.”

    But as the patent makes clear, IBM’s invention could work in other public places, “such as shopping malls, airports, train stations, bus stations, elevators, trains, airplanes, restrooms, sports arenas, libraries, theaters, museums, etc.” (RFID could even help “follow a particular crime suspect through public areas.”)

    Another patent, obtained in 2003 by NCR Corp., details how camouflaged sensors and cameras would record customers’ wanderings through a store, film their facial expressions at displays, and time — to the second — how long shoppers hold and study items.

    Then there’s a 2001 patent application by Procter & Gamble, “Systems and methods for tracking consumers in a store environment.” This one lays out an idea to use heat sensors to track and record “where a consumer is looking, i.e., which way she is facing, whether she is bending over or crouching down to look at a lower shelf.”

    Scary stuff since all it does is make us fear for our personal privacy without a sense of proportion or possible recourse. Still the reporter does a good job reporting on the history of RFIDs and their broad applicability.

    morphing phones

    February 26th, 2008

    Environmental implications are vast (e.g., how exactly do you safely dispose of nanotech?) but the technology is sooo cool.

    slaves of our (geospatial) media

    January 27th, 2008

    (An excellent post written by Intro to GIS student, N. E.)

    Questions of how one must classify geographic information systems (GIS) have received much attention in the years since GIS’s development. While it is most often a debate between calling GIS a science or a tool, geographers Daniel Z. Sui and Michael F. Goodchild suggest that neither of these options properly convey the relationship between GIS and society. In their essay “A tetradic analysis of GIS and society using McLuhan’s law of the media,” they describe GIS as a means of communication, the new mass media (Sui and Goodchild 2003, 7). Throughout their essay, GIS is presented with skepticism. Sui and Goodchild emphasize the abuse of GIS by companies and governments, drawing on the problem of privacy within GIS. However, they likewise address the fact that the social implications of GIS are neither exclusively positive nor negative.

    To focus only on the consequences is to miss the point. Therefore, to explore the relationship between GIS and society, Sui and Goodchild (Ibid., 10-12) evoke 20th Century media analyst, Marshal McLuhan. McLuhan’s law of media is founded on four questions that they apply to GIS:

    1. What does GIS enhance?
    2. What does GIS make obsolete?
    3. What does GIS retrieve?
    4. What does GIS reverse into?

    Sui and Goodchild answer these questions. First, they propose that our human faculties are enhanced by GIS. Through the use of remote sensing and aerial photography, our eyes are enhanced. Likewise, our brains are enhanced through the various spatial analysis and modeling applications of GIS. The accessibility of geographic information is enhanced. By extension, the place of GIS in society is enhanced.

    These extensions are met by consequences. To the second question, “[GIS] also simultaneously make obsolete … various social practices and human faculties” (Ibid., 10). In the case of GIS, the art of traditional cartography and firsthand data collection are becoming increasingly obsolete as a result of the fast advance of GIS (Ibid., 11). In the face of this loss, GIS retrieves long lost social practices (the third question). For example, with GIS has come a return to a kind of oral culture that faded with the invention of the printing press.

    Finally, implicit to GIS is a kind of reversal. Whereas GIS began as a an extension of people, soon people become a sort of extension of GIS (Ibid., 12). Environments are shifted to fit GIS, rather than further developing GIS to fit diverse environments. Furthermore, this role reversal of GIS and its environment create a kind of hierarchy between the individual and the system. The implications of this hierarchy are the loss of personal privacy with the struggle to improve the system and data collection. Thus, “we become slaves to our media” (Ibid.). Through these four areas of analysis Sui and Goodchild express the importance of viewing GIS in a holistic manner.

    This notion of GIS as media continues to gain relevance. The increase in online geospatial databases, search engines such as Pipl and Wink, and social networking sites such as Facebook make it increasingly easy to find geospatial information of individuals. With these kinds of technology, tracking down an old friend takes a few minutes. The problem becomes whether it is morally right for these search engines to communicate the information of individuals. Zabasearch, a people search engine, provides both listed and unlisted telephone numbers (Ibid.). In this way, a sense of agency is removed from the individual for the sake of an accurate and convenient system. Sui and Goodchild summarize this idea nicely by stating that: we are “more concerned with what GIS does for us rather than to us” (Sui and Goodchild 2003, 14). It is important to acknowledge both the benefits of GIS and the consequences and attempt to fully recognize the social implications of GIS.

    Daniel Z. Sui; Michael F. Goodchild, 2003 “A tetradic analysis of GIS and society using McLuhan’s law of the media” Canadian Geographer 47, 1: 5-17. The article is worth reading in full. It discusses the role of GIS as a mass media in much greater depth and raises interesting connections between McLuhan’s theories and GIS.

    Gina Trapani. 2007, “How to track down anyone online” This post gave me insight into the roles of new search engines to disclose geospatial information about individuals without their knowledge or consent.

    Nicholas Carr’s “The social graft” Another post I found quite interesting in regards to the functions of GIS and its implications on privacy.

    we want your waste electronics(?)

    January 27th, 2008

    Xstrata hopes to take advantage of the European Union’s waste electronic regulations and thus the EU’s needs to have its cellphones, laptops, etc. recycled. Xstrata plans to double its recycling capacity at the Horne smelter in Quebec.

    I feel a bit–just a bit–of NIMBY coming on. Sure I want recycling and the city’s residents need the income. Hopefully, this recycling plant isn’t so dirty that it’s a net loss to the environment instead of a net gain.

    environmentally friendly MacBook Air

    January 15th, 2008

    Apple has just announced the new MacBook Air, an incredibly thin and light, full keyboard laptop with all the features that you know and love.
    macbookair.jpg

    Apparently Apple has also addressed the critics that it looks and feels environmentally friendly but is far from it.

    Apple’s frequently been in the crosshairs of environmental group Greenpeace in recent years. Jobs offered information about the environmental goals behind the MacBook Air — it has a fully recyclable aluminum case, and is “the first” to have a mercury-free display with arsenic-free glass. All the circuit boards are BFR-free and PVC-free, and the retail packaging uses 56 percent less material than the MacBook packaging.

    Must resist urge to buy….

    more GIS and electoral politics

    January 9th, 2008

    (written by Intro to GIS student, D. A.)

    One of the many uses of Geographic Information Systems (GIS) is in electoral politics. In most countries, political representation is in part geographically-based (where you live is how you vote). One could statically map this data, but GIS can be used to analyse and display political data in more user-friendly and dynamic ways. An example of this application of GIS can be seen in the Australian Broadcasting Corporation’s coverage of the 2007 federal election in Australia. The website features a very useful, interactive map, and makes extensive use of GIS.

    ABC’s geospatial visualization is based on the Google Maps platform, and it contains various layers of political data. The layers contain data on the seat make up when the election was called, key seats, seats changing hands, as well as the final predicted results. The various electoral constituencies on the map are hotlinked to pages of information that give an overview of the demographics, and voting history. During the election, it had live results of the constituency as the votes were counted. The various constituencies on the site are colour coded based on the party that controls them. A viewer can flip though the data and in seconds see how the election is playing out, where various parties are gaining, and how those gains are geographically distributed. Because all this data is superimposed on Google Maps, a visitor can even search for a specific address to see the constituency that contains it. This map provides a highly accessible, one-stop location for information about the election.

    Here in Canada, the CBC has also used interactive maps to display election results, but none are nearly as user-friendly or as comprehensive as the ABC example. The most recent election, which was held in early November, was for provincial ridings in Saskatchewan. The interactive map displayed only the incoming data for that election. Considerable additional data is available online, but it wasn’t brought together. Provincial riding profiles were displayed on separate pages, as were the results for the previous election. The format was far more constraining, and provided far less information than in Ausralia. It would be great if CBC could take full advantage of the new technologies that could improve the display of election information.

    Cellphone tracking powers on request. Who cares?

    January 6th, 2008

    (written by Intro to GIS student, G. M., who takes a view on privacy contrary from many of the GIS students)

    Information and communication technologies that have proliferated throughout developed and even underdeveloped societies have transformed our way of life…but, people ask, “At what cost?”. The cell phone is a great example of this proliferation and its potential cost. It has become a convenience few have been able to resist. One after another people have handed over their personal information and in return they received affordable mobile communication thanks to GPS satellites that constantly scan the earth’s surface and cell phone towers that periodically report on people’s locations. Little did they know they had just given up much of their privacy because their cell phone can be located within 30 meters as long as the battery is intact. A cell phone works with the same technology as GPS directional devices such as Onstar that can constantly transmit a location signal weather this is desired or not. Cell phone companies, which have been entrusted with this information, have been known to release it to government agencies, which inform the companies that the information is necessary for security purposes.

    Personally I have no problem with my personal information including my approximate location being made available at any time. I feel by owning a cell phone I have given up a certain amount of my privacy but also feel safe as I carry out my regular routine. As one member of the US Justice department states “Law enforcement has absolutely no interest in tracking the locations of law-abiding citizens” (Nakashima 2007). Even when I do become a target, most likely by advertisers, I will accept this as an externality of the technological age. Whether the externality is positive or negative I have yet to decide. I’m still neutral on this as I have yet to experience any form of invasive action, so I continue my existence, comfortable with the knowledge of potential ongoing surveillance.

    These geolcation technologies offer benefits that vastly outweigh costs of developing this technology. As satellites are upgraded and added to the system geolocation information will become more accurate, less expensive, and more readily available. I believe that our privacy has been looked after thus far; however, if society continues down this path we must accept further losses to what many consider a basic human right.

    Related
    Using the GPS for People Tracking

    Justice Department Defends Use of Cell-Phone Tracking Data

    The International Consumer Electronics Show goes green

    January 6th, 2008

    The largest consumer electronic show in the world is trying to go carbon neutral.

    Offsetting the environmental impact of the show means eliminating the creation of more than 20,000 tons of carbon.

    The show uses as much energy as it takes to power 2,600 homes for a year and the equivalent of 2.3 million gallons of gasoline.

    “It’s pretty ambitious, considering we’re larger than the Super Bowl and all the political conventions,” said Gary Shapiro, chief executive of the Consumer Electronics Association, the Arlington-based group hosting the show.

    Recycled carpet, biodegradable plastic utensils, pamphlets printed with soy ink and energy-efficient light bulbs will be used, he said. [Link added]

    The ICES going green still sounds like an oxymoron to me. Despite activities at the show, the CEA does little to actively promote recycling and reuse of electronic devices, the lack of which plagues the electronics industry.

    The Dark Side of GIS

    January 5th, 2008

    (written by Intro to GIS student, T. M.)

    Geographic Information Science is often used for constructive purposes, such as creating maps for emergency situations (consider our third assignment in the course) or spatial analysis that ensures the protection of certain environmentally sensitive areas (see our assignment #5). Indeed, Geographic Information Systems (GIS) is often used for purposes that promote the well-being of people, such as mapping a city’s transportation routes to make commuting more convenient and efficient. But what is often neglected is when GIS is used in ways that are seen almost universally as detrimental to citizens. This can be seen to be the case when the sophisticated tools used in the field of GIS are used to gerrymander electoral districts.

    Gerrymandering has existed for as long as there have been electoral districts to draw. The term was coined in 1811 when Massachusetts Governor Elbridge Gerry approved a voting district in the shape of a salamander. Despite its storied past, Gerrymandering has recently become more precise in the U.S. to give a distinct long-term tactical advantage to one political party over another. Using census data and electronic maps, GIS can aid in the disenfranchisement of certain voter categories, such as women, ethnic minorities and other demographics that are statistically less likely to vote for a party. Multiple techniques, such as ‘cracking’, ‘packing’ and ‘stacking’ votes can be used to dilute the strength of one party’s vote to reap gains for another.

    Instead of being used in harmful way, GIS could be utilized to make the drawing of electoral maps fairer than they could have ever been without it (as GIS was used in the 2000 census). It is important to note that any tool in the hands of a person with malicious intent can be used in a negative fashion. For example, GIS can be used by the laudable for mapping out aid delivery routes in Africa or by the vicious for planning terrorist bombings. This brings about some noticeable implications: How can we encourage responsible use of GIS? Or, do we need some sort of restriction to induce the responsible use of GIS? I’m not sure that such a restriction would be possible, or even desirable. But what is certain is that one needs to reflect upon the negative nature of GIS, a story that is so often missed while we pile praises upon praises on this technology that has, for the most part, made our jobs as well-intentioned geographers easier.

    Other Reading:
    GIS Code of Ethics

    Bushmanders and Bullwinkles: How Politicians Manipulate Electronic Maps and Census Data to Win Elections by Mark Monmonier (JStor Access Required)

    Controversies in Political Redistricting GIS, Geography and Society by Munroe Eagles

    are you naughty or nice? Santa uses his geodatabase to find out

    December 24th, 2007

    (h/t M. L.)

    After delivering countless presents and tidings of joy to the people of the world, Santa Claus is finally taking his operations into the twenty-first century. Data was painstakingly collected by magical GPS technicians, statisticians and advertising companies, and all the Christmas elves have been trained to use state-of-the-art GIS software to improve the efficiency of Santa’s Christmas Eve global journey.

    The elves created numerous layers of data, both raster and vector, that will provide Santa and his reindeer with vital information. A vector layer of lines joining cities around the world allows the elves to do shortest path analysis to ensure the trip is completed well before sunrise. Another vector layer consists of points representing every house in the world; symbology is used to differentiate houses with chimneys from those that will require a little more Christmas magic to infiltrate. Also within this layer is data on the location of naughty and nice children, which permitted Santa’s apprentices to make selections and create a new layer consisting only of the houses where nice children live. Raster layers were also created, namely one representing population densities within cities worldwide. The reindeer must know the location of suitable landing areas, and by creating buffer zones around these areas, Santa knows how many houses he can visit without using his sleigh. Finally, another raster layer representing the distribution of Christmas cheer will serve as an indicator of his success in bringing happiness to the people of the world.

    Although this information will speed up the Christmas Eve rush, the ridiculous amount of received gift lists was also taken into account. Santa paired up with Google to determine the interests and wants of each person in the world, young and old. The elves simply scrape relevant search subjects and relate it to the attribute table containing house points. Hence, there is no longer a need to check each list twice, which will greatly increase productivity in the workshop.

    Evidently, governments are scrambling to get ahold of Santa’s new geodatabase. However, the GIS technology at the elves’ disposal is far too advanced for non-magically assisted computers. Besides, jolly old Saint Nick is keeping his data as elusive as his formula for Christmas spirit.

    For a “real world” implementation geospatial technologies for Santa, NORAD created a system to track Santa Claus along his Christmas Eve journey. They use satellites, radars, fighter jets and Santa Cams to collect data for visualization on the Google Earth platform.

    Forty seven radars positioned along the northern border of North America closely detect Santa’s sleigh taking off from the workshop. Then, geo-synchronous satellites, that is satellites that remain in the same spot over Earth, detect heat generated from Rudolph’s nose as the sleigh travels all over the world. Throughout the night of Christmas Eve, information on Santa’s whereabouts is loaded onto Google Earth and updated frequently. Numerous cameras used only on Christmas Eve photograph Santa and his reindeer. As the sleigh approaches North America, Norad fighter jets take off from Newfoundland to escort it in safely.

    Another clever system for tracking Santa is SantaGPS, but unlike NORAD Tracks Santa, users must pay for the full version. According to feedback entries, the interface is quite easy to use and is easily understandable by children. The system has features like World Map Tracking View, Satellite Tracking View and other novelties like Santa Sounds and Christmas music.

    Unfortunately, I have been unable to find blogs by other people who viewed GIS as an asset for Santa himself.

    tracking is ubiquitous

    December 21st, 2007

    (written by Intro to GIS student, R. P.)

    The Washington Post’s article regarding the tracking power of cell phones would have been a much more interesting read several years ago. The reality is however, that in 2007, an article about tracking powers with mobile phones is nothing new. Don’t get me wrong, the technology that can facilitate the solving of even the most complicated crimes is remarkable. But again, can anyone really be surprised given how incredibly dependent modern society has become on technological devices such as cell phones, Ipods, and high-speed computers with ArcGIS 9.2?

    The technology that allows us to do nearly anything we want with a pocket-sized gadget is obviously interesting, but what’s of greater concern here (which the article does touch on) is the issue of privacy! Is it okay to listen in on people’s conversations to help solve a crime? Is it possible to “permit surreptitious conversion of a cell phone into a tracking device” without finding out more information than one ethically should? According to the same article, Dean Boyd, a Justice Department spokesperson insists that

    Law enforcement has absolutely no interest in tracking the locations of law-abiding citizens. None whatsoever.

    Some may disagree. Check out Google maps (particularly the satellite images or “street-view” options in major cities). I think almost anyone will agree that it’s fascinating how you can zoom in enough to the extent at which you can see your own house on the Internet. But is it okay that everybody in the known universe with a functioning computer can do so as well? In one controversial case, the street-view option of Google Maps allowed users to see a certain location in such detail, that the a resident of the area in question could see her cat “sitting on a perch in the living room window of her second-floor apartment.”

    There have certainly been similar cases regarding privacy with satellite images and tracking information. Following September 11th, 2001, it appears that any authority figure will prosecute suspicious people regarding crimes (ranging the entire spectrum of crime severity). In her book, Silencing Political Dissent Nancy Chang confirms this movement towards “rapid disintegration of American civil liberties” as a result of the Bush administration’s War on Terror. In that regard, the technology has been welcomed in the same fashion that forensic science advancements have facilitated crime-solving (or so it appears on CSI Miami).

    Another thing to remember is that most criminals are not stupid. As we become smarter in the development of tracking mechanisms, so too do criminals. No matter how good our crime-stopping technology gets, criminals will figure out how to beat the system.

    We probably won’t know the consequences of this surveillance technology for a while, but when an Intro to GIS assignment involves choosing a suitable location for a new 5,000-inch flat-screen television in my room at home based on my room’s layout, we’ll know for sure.

    animal tracks

    December 21st, 2007

    (Written by Intro to GIS student, S. M.)

    Tracking animals and their migration patterns has always been immensely important in conservation work. These methods, all the more vital during an age of decreasing biodiversity, are diverse. The main way for tracking animals at the moment is to compile data from various sightings on where the animals have been. But there are problems in this approach. It’s hard to sight small creatures like birds. If an animal is observed, the everyday person cannot always be expected to correctly identify the species. Also, many people can report the same animal. These mis-sightings can skew data analysis.

    The other method commonly in use is radio or satellite tracking. This involves a collar or implant being attached to the animal in question. The antenna sends a signal that is received by orbiting satellites, which is then analyzed. This method is much more reliable than the one mentioned above but it is much more expensive to initiate and maintain. Also, the animal to be tracked must be caught and tagged in the first place. In South Africa the Limpopo Wild Dog Project uses this technique to enhance conservation efforts.

    A new method of tracking animals is coming into use that involves much more public participation. Many projects are requesting that people send them photos. In many cases scars or various markings can then be used to identify individual animals. Researchers at Save the Manatee use this method, among others. This method is useful because it gets the general public involved in conservation efforts and increases awareness. The one problem with this method was that the location of the animals was not always reported accurately. People failed to remember where they had taken the picture. But a new technology is entering the market that may make this much easier. GPS enabled cameras will allow people to know exactly when and where their pictures were taken. This could make things much easier for researchers and their conservation efforts (more info on GPS cameras.

    GPS: savior or failure of the taxi industry?

    December 21st, 2007

    (written by Intro to GIS student, A. O.)

    We all know what GPS is. It is not the aim of this post to present the benefits of such a system but rather objectively consider the ramifications the use of GPS will play in the future of various industries. Consider the taxi industry. In recent times just the talk of making such implementation mandatory led to the city wide strike of thousands of cab drivers in New York City (NYC). Because of this – and for the fact that the image of a yellow taxi cab is synonymous with NYC – I will focus on the ongoing debate of GPS in the New York taxi industry.

    In NYC there are 13,000 taxis currently in operation. If the GPS program was implemented, all cab owners will have to install a $5,000 system which includes a GPS tracking device, a credit card reader, and a touch-screen TV. The professed goal is increased user satisfaction and overall industry efficiency. (There are other objections are being made about the some of the devices, such as a 5 percent surcharge being removed on all credit card transactions), but I’m not considering these.)

    GPS has become a mainstay in private automobiles. The ability to enter/utter a location and have directions returned to you is not only nifty, but also very useful and a great time saver. So why would taxi drivers object to having such a technology present in their cars? Well, the GPS system currently proposed is not the same as those we find in our cars today. It is actually just a tracking device that enables those in high places to see where all cars currently are, where they have been, and how long each fare was. As Bhaivari Desai – the executive director of the Taxi Workers Alliance (TWA) – points out: “[the GPS] is simply being used for tracking…They’re not navigational, cannot be used for dispatching, and serve no purpose to the driver or the public.” Bill Lundauer – also from the TWA – said: “It’s like we’re under surveillance. Not only are we under surveillance we have to pay for the dubious privilege.” So is New York’s Taxi & Limousine Commission (TLC) wrong to press for the installation of GPS in taxis?

    Allan Fromberg (TLC) claims that GPS facilitates activities that drivers already and could assist passengers in finding lost items.

    “Right now the first thing a taxi driver does is write something on a clip board. That information will now be electronically transferred [to the system],” …”GPS is used to facilitate an electronic trip sheet and to facilitate the return of lost property without the [passenger’s knowledge] of a medallion number. Of our 88,000 passengers [that lost something last year] the majority don’t know what cab they were in. With the vehicle location system we’ll be able to triangulate—take a snap shot in time—of several cars in the vicinity of a drop off,” to narrow down which car the passenger was riding in when the item was lost.

    It all sounds good but couldn’t this be implemented within a ‘normal’ GPS system – one better aimed at the needs of the drivers? I think the technology exists to make this a worthwhile venture but once again apparent lack of foresight has led taxi officials to miss the mark with their current proposal. If tracking taxi drivers is their main goal then let’s just hope that – as proposed by Bhaivari Desai – this isn’t just a ploy to track the whereabouts of Muslim drivers.

    Potential for GIS in E-waste

    December 21st, 2007

    (Written by Intro to GIS student, B. W.)

    Electronic waste, or E-waste, is an important emerging problem in the developing world as the rapid changes in electronic technologies have made it easy, affordable and preferable for the people of the Western world to keep buying the “renewable” and “better” electronics. This waste has resulted in a new industry, “E-waste recycling“. Illegal e-waste trades between “recyclers” and brokers have lead to the exporting of the Western World’s e-waste to developing countries such as Asia. causing serious environmental and health hazards in poor local communities, due to the hazardous nature of the components in electronics 4. In fact, 50-80 percent of the waste generated a year in the US finds itself in poor Asian communities, due to many loopholes in governmental policies that have been encouraging this harmful exporting industry.

    The ITU has recently proposed a project to improve the living conditions for locals based on changing e-wastes streams, enhancing resource protection, reducing health risks, and improving their economic situation:

    The project is producing a knowledge base on e-waste recycling in developing and transition countries published in the form of an e-waste guide as an interactive Website. Furthermore, the project is producing feasibility reports on improvements in sustainable e-waste recycling schemes in three pre-selected regions in order to select one region for detailed planning and implementation of an improved e-waste recycling system and to validate the guide and underpin it with concrete examples.

    I believe that GIS holds great potential for this project. Non-profit organizations could assist locals from poor Asian communities that work in the e-waste “recycling” sector, to geolocate the major dumping areas and create attributes (e.g., soil contamination levels, water contamination levels, and harmful “recycling activities”). Various kinds of analyses could be conducted. For example, locations of sites could be compared to locations of sensitive facilities such as schools and hospitals, with the hopes that either the toxic sites or the sensitive facilities could be moved if one was too close to the other. The Basel Action Network (BAN) conducted an investigation in Guiyu, one of the large recycling centers in China, and discovered serious health and environmental problems in the region. BAN discovered similar problems in other recycling centers in Pakistan and India and suspects that many other sites exist but are kept secret. With GIS, this project could track and then reveal to the world the secret harm of this exportation to the developing world and potentially force governments to strengthen their rules on the export of E-waste.

    tracking people

    December 20th, 2007

    (Written by Intro to GIS student, S. M.)

    The world we live in today is constantly changing. With modernization, an increasing number of technologies are being developed and are being utilized in new ways. The development of technology has increased our ability as humans to understand more about the world in which we live. New geographic information systems (GIS) and geospatial technologies allow users and administrators to have access to enormous amounts of well-organized spatial data. Tracking devices (e.g., GPS) are a type of geospatial technology that have developed recently, and has evolved into something that was unimaginable just a few decades earlier.

    Tracking devices stand on a very thin line regarding rights of individuals and consumers. Are these new technological advances are interfering with privacy? There are numerous benefits of such devices. For example, tracking devices implanted in humans can be of great assistance with emergency healthcare. If a patient is found unconscious with no identification information, an implanted device could provide vital information necessary to save their life. Knowledge of a patient’s allergies and health history is incredibly important information, and without this information easily accessible, lives could be put in jeopardy.

    Tracking devices have been proven useful in regards to security and theft prevention. About a year ago, $25,000 of stolen oil equipment was recovered thanks to GPS systems. These technologies are useful in many cases and have benefited many users. However, with such great benefits, it’s easy to overlook the potential risks of such technologies. What if this technology ends up in the wrong hands? With every new technology, there’s always a risk involved. The more and more powerful we as human beings become, thanks to our technological advancements, the more vulnerable we are to disaster. Information is powerful, and can be used just as easily to harm people as it can be used for good. I believe that the development of this technology is incredibly useful, but must be monitored closely.

    Even if the government has full control over tracking devices, they easily could be used in a negative manner and violate personal privacy rights.

    In some cases, judges have granted the requests without requiring the government to demonstrate that there is probable cause to believe that a crime is taking place or that the inquiry will yield evidence of a crime.

    Though useful in many cases, such as catching criminals, this technology can very easily cross the line and violate privacy. This technology will likely grow and develop even further with time, and it is therefore necessary to closely monitor its usage to protect the privacy and safety of people.

    The Monetization of Maps: Advertising Power in GIS and Google Earth

    December 20th, 2007

    (written by Intro to GIS student, A. W.)

    The advent of the online map has spelled a further expansion of advertising from the real world to the online world. Map users are increasingly using visual representations of geographic information (i.e., maps) and related software to, for example, find directions, familiarize themselves with an area, and navigate around areas. Now, users will need to face the reality that the online map is a great medium for marketing. Several GIS Marketing companies like Safarri and Lat49, plus search-engine powerhouses like Yahoo, Google and Microsoft are taking advantage of what are excellent advertising platforms. When one thinks of the high costs of creating and displaying high quality online maps, most which are accessible to the public for free, it is logical that software companies would reserve the right to use those spaces for revenue. The use of text, banners, images, audio and video are all methods of advertising on electronic maps. Geocoded advertisements tie a particular message to a specific address or landmark based on its latitude and longitude. As a query response for information in a geographic region, ranked ads are plotted on or in association with a map or satellite photo (Google uses AdSense and AdWords). The number of ads either plotted or listed would vary as a function of the map type and image resolution. GIS Monitor Archive explains how ads are ranked or scored, with their attributes or features as a function of such a score or ranking.

    Until recently, it was difficult to know at what map scale and extent to pitch a geocoded ad. This meant either insufficient information or an overcrowding of it depending on the map’s resolution. The user’s viewing area (i.e., map extent plus scale) may overlap multiple cities, regions or areas. This is unappealing to the advertiser who may want his/her ad to appear within a specific area. The solution would be to determine whether a map extent overlaps sufficiently with the advertiser-identified threshold area of a map. The inability of current mapping software to distinguish boundaries of geographical areas presents a problem. Even if an online electronic map was a copy of a printed map, the boundaries on the printed one would not necessarily be geocoded for the software’s use. The display issues haven’t been resolved.

    Google has discovered a method to identify and locate these boundaries around geographic regions. This means it can build spatial indexes to service particular geographic areas related based on a geocoding principle. For instance, when the map user is doing a search at a city level, certain ads will appear to them that may not be visible at the state level. This is how it works, according to Google’s patent:

    From a set of coordinates within the area (e.g., latitude/longitude coordinates), a grid of relatively small cells of geographic data is overlaid upon those coordinates and associated with the area. Each initial cell is iteratively replaced with a larger cell that encompasses the initial cell, unless the replacement cell intersects a cell associated with some other geographical area, or until some other boundary condition is met (e.g., a threshold number of replacements is performed).

    The reality is that online maps are increasingly being used for advertising, and advertising is not likely to quell its intense interest in the medium. However, digital earths like Google Earth, which are opening the possibility of geolocating advertisements, may decline in popularity if the digital earths become overcrowded, since they are not primary tools for navigation.

    GIS as an Aid to the Urgences-Sante in Montreal

    December 19th, 2007

    (Written by Intro to GIS student, L. M.)

    Montreal is home to 1,620,693 million people and is ranked as the 2nd largest city in Canada. The city has countless events, exquisite restaurants, educational museums and highly regarded schools for its massive population. However a quick emergency response time is not one of them.

    Currently the average emergency response time for an ambulance in the City of Montreal is nine minutes and 27 seconds. This number is highly dependent on the traffic and the time of day at which the ambulance is dispatched. Once we get into the suburbs of Montreal, that time can fluctuate a lot more to upwards of almost fifteen minutes.

    According to CTV News, “Quebec’s health minister says Urgences-Sante, which serves both Montreal and Laval, needs to organize itself better, in order to reduce its response time.”

    How can this be accomplished? The Grand Prairie Region in Alberta has found an answer in GIS.

    For years GIS has been used as an aid to help firefighters and emergency response teams fight bush and forest fires. GIS and GPS tools are now being implemented in upstate New York to improve the emergency response time of their medical services. So why not try applying these new technologies to Montreal?

    It could start simple, in the way that the Grand Prairies did, by creating hardcopy GIS maps for the emergency works to carry when they are in unknown areas of the city as well as in areas where GPS does not function well (e.g., in urban canyons). The next step would be to start creating categories of GIS-generated maps that illustrate dense traffic areas throughout the day. This way a clear route could be established for emergency crews to always find the fastest way to their destination.

    We have seen GIS used in many measures for disaster management, now it is time to take one step higher and use GIS in Emergency Management Services, to prevent further disaster from occurring in our City of Montreal.