• Google
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  • Yahoo! Inc.
  • AND Automotive Navigation Data
  • earthmine
  • First American Spatial Solutions
  • Waze
  • Google

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Maps in Four Dimensions

Location: Regency Ballroom Level: Novice
Average rating: ****.
(4.00, 18 ratings)

Users of public transit have a very different view of the city than
car-bound folks. For a driver, the city is more-or-less static – the
time it takes to cross the city will stay more or less constant. To a
transit rider, the city is a constantly shifting landscape. A short
trip one moment becomes a long wait the moment you miss a train. An
express train in the morning may become a lethargic slog midday.
Displaying the time-dependent world as seen by a transit rider is a
challenge to cartographers, who must find a way to display
four-dimensional, time-varying data on a two-dimensional canvas.

We’ll take a look at different ways that mapmakers have attempted to
squeeze all sorts of four-dimensional data onto maps, from the
oscillations of transit systems to the shifting landscape of relative
distances within a city throughout the day, from the movements of
armies in battle to the dance of a collegiate housing shuffle.

Photo of Brandon Martin-Anderson

Brandon Martin-Anderson

Urban Mapping

Brandon Martin-Anderson is a free-lance map hacker and public transit enthusiast. Brandon is the founder and administrator of Graphserver, an open source multimodal journey planning engine.

Comments on this page are now closed.


Picture of Christopher Osborne
Christopher Osborne
05/22/2009 1:58am PDT

Brandon was way ahead of the rest of the geo-pack. Awe inspiring work

Frank Williams
05/21/2009 10:49am PDT

This was an above average presentation for this conference. Everyone is pretty tuned in to the geospatial data/metadata aspects of LBS, but hardly any discussion has been held on the chronospatial, which is going to be key to on-the-fly. I believe I only saw two presentations were data was actually in motion. Time will be the key component to the selection and filtering of LBS for the business perspective of folks actually looking to offer SERVICES. To me most of the briefings dealt with static datamining.