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Urban Generator: The SLEUTH Model

By SLEUTH model, Urban Growth

Sanna Iltanen from the EDGE Laboratory for Architecture and Urban Research (Tampere University of Technology) who is currently a visitor at our lab gave a talk the other day entitled “Experiments with SLEUTH-model”. She discussed the SLEUTH model, the input data needed to initialize the model, its calibration and explored some simulation results from different land-use policies in the Helsinki and Turku city regions of Finland.

The SLEUTH model is a tightly coupled, modified cellular automaton model of urban growth (and other land class change) which has been applied to over 100 cities and regions over the last decade (click here to see some of them). For example, it has been used to explore future land use patterns under different policy scenarios in the Washington-Baltimore metropolitan area.

The name SLEUTH was derived from the simple image input requirements of the models: Slope, Land cover, Exclusion, Urbanization, Transportation, and Hillshade.NASA have also used the model to look at the growth of Washington. The model was applied to 23,700 square kilometers (9151 sq. miles) of the Washington-Baltimore metropolitan area. The initial aim was to simulate the impact of future policy scenarios on the area and Chesapeake Bay watershed.

You can download her Sanna’s talk from here, thanks go to gisagents.blogspot.com for the info and background on the SLEUTH model.

Experimental Indoor Positioning Service: Nokia Kamppi

By GPS, Location aware devices, location based services, Nokia, Wifi

Location is everything in terms of communicating data on our environment. GPS is all well and good but its not much use indoors or in urban canyons, as such the new experimental service by Nokia is interesting. The Nokia Kamppi trial is focused on about indoor positioning, and it is currently running at the Kamppi Shopping Center in Helsinki, Finland. Anyone inside the shopping center can access indoor maps, information and vouchers by going to kamppi.nokia.mobi using any mobile browser. The indoor positioning functionality, however, is only available on Nokia S60 devices equipped with Wireless LAN.

Key features:

* Unique indoor positioning capability for locating shops, restaurants and friends
* Option to share your location with friends by SMS (the SMS contains a link to the indoor map and details of your location)
* Ability to search for friends nearby and view their position on the map
* Easy access to Kamppi Shopping Center information and discount vouchers

Compatibility and system requirements

The actual trial takes place in Kamppi shopping center in Helsinki Finland, but anyone in the world can access the mobile site at kamppi.nokia.mobi.

Such experiments are beginning to make us feel connected to the city – see our previous post on Connected to the World but not the City – things are changing, escpecially in light of the launch of Layar on Android phones.

Experimental Indoor Positioning Service: Nokia Kamppi

By GPS, Location aware devices, location based services, Nokia, Wifi

Location is everything in terms of communicating data on our environment. GPS is all well and good but its not much use indoors or in urban canyons, as such the new experimental service by Nokia is interesting. The Nokia Kamppi trial is focused on about indoor positioning, and it is currently running at the Kamppi Shopping Center in Helsinki, Finland. Anyone inside the shopping center can access indoor maps, information and vouchers by going to kamppi.nokia.mobi using any mobile browser. The indoor positioning functionality, however, is only available on Nokia S60 devices equipped with Wireless LAN.

Key features:

* Unique indoor positioning capability for locating shops, restaurants and friends
* Option to share your location with friends by SMS (the SMS contains a link to the indoor map and details of your location)
* Ability to search for friends nearby and view their position on the map
* Easy access to Kamppi Shopping Center information and discount vouchers

Compatibility and system requirements

The actual trial takes place in Kamppi shopping center in Helsinki Finland, but anyone in the world can access the mobile site at kamppi.nokia.mobi.

Such experiments are beginning to make us feel connected to the city – see our previous post on Connected to the World but not the City – things are changing, escpecially in light of the launch of Layar on Android phones.

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