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Mapping The Tour de France Riders From Space

Roland Piquepaille writes "It was just a matter of time before someone gets the idea of using satellite localization to map the positions of the cyclists of the Tour de France. In a first test on July 21 during the ascension to l'Alpe d'Huez, ten riders were equipped with receivers and tracked by the EGNOS European satellite positioning system, a preparatory programme for the Galileo system. The European Space Agency (ESA) reports about this first test in "The best view of the Tour is from space." It's highly possible that all riders can get receivers as soon as next year. And this data will be available on the Web, so you will know in real time the exact location of your favorite champion. Read this summary for more details and a computer-generated image showing the respective positions of Lance Armstrong and Richard Virenque, the top-ranked climber, while climbing to the top of l'Alpe d'Huez."

4 of 173 comments (clear)

  1. Clarifications by Anonymous Coward · · Score: 5, Informative

    They are tracked with GPS receivers. EGNOS (European Geostationary Navigation Overlay System) is the European equivalent of WAAS (Wide Area Augmentation System). These systems reduce the distortions introduced by atmospheric effects by measuring the distortions at a number of base stations with known locations and transmitting the distortion map via geostationary satellites.

  2. Tracking teams and other uses by Infonaut · · Score: 4, Insightful
    I find this interesting because it opens up the possibility of being able to track not only individuals, but teams. Knowing where a dominant rider is in relation to the supporting members of his team is vitally important in understanding the overall situation. I envision an applet that continuously checks the positional data and would allow me to watch the relative positions of riders from various teams using color coding.

    Sometimes events inside the peloton go unwatched by commentators who are paying more attention to the leaders who have broken away from the main group. It would be nice to be able to see the jockeying that occurs between teams and individuals.

    The data feed could also be used to help keep track of riders as they go after the green (points) jersey. This is a really exciting part of the Tour de France that never really gets as much attention as it deserves.

    Let's hope this data gets put to good use. Kudos to the ESA!

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    Read the EFF's Fair Use FAQ
  3. Re:Drugs and Bikes by selderrr · · Score: 4, Interesting

    there we go again... Brandt was tested positive on Methadon, a substance that DOES NOT HELP cycling better. It's some sort of pain killer.

    Additionally, the dose was miniscule. So small that it is impossible to have any advantage or even effect whatshowever. It is very likely that he's the victim of eating something which contained some Methadon without his knowledge. (did you know for instance that tap water in many cities contains high traces of Oestrogen ? Does that make you a transexual ?)

    Those athletes work and live on the edge where NONE OF US HERE has ever been and will ever be. Cycling, especially the Tour de France is the most intense and demanding sport on earth. Those guys burn up to 12.000calories in one day (insert lame joke here) andthey have no choice but to nurse their bodies at perfection. That includes vitamins and food supplements that are on the edge of what's allowed. But ON THE EDGE is not equal to OVER THE EDGE. Each of these guys goes as far as his doctor tells him. The slightest mistake tests them positive.

    Don't be one of those bystanders booing 'cycling is all about dope !'. The sport is insane, the competition is insane, the food is insane too. There are surely some dopeheads, as in every sport. But armstrong for instance, gets tested EVERY DAY. Also at home, at unexpected times. Outside racing season.

    irst come to live in a racing country (I'm from Belgium) and experience cycling first handed. There's probably less than 1% of the /. population that would make it up alpe d'huez... even with all the dope they wanted.

  4. Re:extra weight? by Corf · · Score: 4, Interesting
    which they did by substituting the titanium bolts on some of his equipment with stainless steel instead. How's that for gram-counting? It's amazing the difference people think one or two extra grams saved will make on their riding.

    On the flipside, every bit of rotating weight you shave off the wheels counts far more than relatively stationary weight on the frame or componentry. Those wheels Armstrong rode up Alpe d'Huez with were around 1000g for the set; compare with the Ksyrium Equipes on my road bike at 1670g. Truly use-once-and-throw-away event-specific stuff... anyone over 200lbs gets on those, they fold up like pringles.

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    The pain was excruciating and the scarring is likely permanent, but that just means it's working.