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Category: Contributor: Ludmil Trenkov

REVIEW: Amsterdam Realtime, by Ludmil Trenkov

Note: Given the current popularity of GPS systems, NMF is excited to feature this brief review by Ludmil Trenkov on “Amsterdam Real Time,” one of the most important GPS projects in new media’s recent history.

Originally published on Metalocative. Republished with permission.

The introduction of Global Positioning Satellites (GPS) for non-military uses has invited practitioners of many arts to conceive and implement new and interesting ways of use. The GPS technology helps locate one’s position in the world. When that position is continuously tracked and charted digitally – a trace-map is born, which is typically a record of one’s daily special whereabouts.

Amsterdam RealTime is a trace-map concept recording the movements of volunteers who were asked to carry a GPS enabled wireless transmitter with them. The map is closer to the record of psychogeographic experience than a precise cartography. The whereabouts of users were recorded over time and compiled together on a screen.

Amsterdam RealTime was commissioned for the exhibition Maps of Amsterdam 1866-2000 at the Amsterdam City Archive and was produced by Waag Society and Esther Polak. From October 3 to December 1, 2002 all Amsterdam residents were invited to participate to create a contemporary version of a mapping experience. The premise of the piece is based on the assumption that all citizens of the city hold an invisible map in their heads. The project tracked 75 volunteers for 40 days going about their typical daily routines. All traces were generated via GPS and transmitted over GPRS (2.5G) connection to a Waag Society administered server. The traces were drawn as white lines over black background with thicker and brighter lines indicating greater frequency of travel. Naturally, all street tracings started as black screen and were illuminated by continuous tracings of real world activity. It became apparent that different residents “drew” different trace maps based on their means of transportation and purpose of travel. Once they became fully aware of their mapping outcomes some
even attempted to create artful GPS drawings. The accumulative traces of all participants overtime rendered a truly compelling map of large section of Amsterdam, where the most visited parts were shown in red. All participants received a printed copy of their trace screens. The project rose to such prominence that requests from Brussels, Lisbon and Paris were conveyed, which prompted Waag Society to consider releasing an open source version of their software. Furthermore, the project was reconstituted in Riga Latvia, as RealTime Riga in collaboration with RIXC.

Amsterdam RealTime stands out as a seminal project demonstrating keen spatial affinity between urban residents and the city they inhabit. As one of the early examples of GPS drawing concepts the trace images and their method of generating suggested a compelling new way of using readily available commercial technology such as GPS receivers and GPRS networks. On one end the project allows the tracked individuals to become more aware to their whereabouts, on the other it demonstrates visually the commonality of daily patterns, thus revealing a new form of shared experience.

REVIEW: Hindsight and Time Based Mapping, by Ludmil Trenkov

Originally published in, republished with permission.

The two main parameters of locative media are location sensitivity, mostly expressed as longitude and latitude, and time. Locative Media has been developed following the theoretical model of maps. Since their inception, maps have been used to reveal special relationships and realities, and by their mostly static nature, they represent a particular slice of time. With the introduction of web-based mapping new opportunities have arisen, such as revealing spatial data through time. This is a novel direction in locative media – time-based mapping.

Hindsight by Trulia is one of the most poignant examples of time based mapping of information. It allows exploration of historic data in more than half a dozen cities and communities within the United States. The map shows the spatial distribution of real estate related data distributed over time and territories. The experience is both entertaining and informative.

Hindsight is a mapping tool designed to compliment Trulia, a popular real estate listing site, created by Stamen Design. The basic schema includes a map-based context, where one is offered to select among various cities and communities within the continental United States. When selected the map zooms in and an animation of the localized data activates the map in a form of expanding and contracting colored dots. The animation could be stopped and advanced on a year-by-year basis. The central navigation, incorporates color and scale visual clues corresponding to the overlaid data. By sliding laterally one can evoke the overlay for a specific year. Additional tools include the customary map zooming feature and a map brightness controller, which could affect both the aesthetic and utilitarian functions of the overall viewing experience. The site was prominently showcased during the 2007 Where 2.0 Conference in San Jose, CA.

Hindsight is not an art piece, though it offers engaging and informative encounter. At a first glance any subset of a commercial website would be just that. Nevertheless it offers experience that goes beyond pure utility. Functioning within the context of commercial services it offers a contemplative interaction, where one could discover relationships between properties within locals. While the interaction options are relatively minimal their innumerable combinations offer captivating experiences.