Be Smart with Public Land

In every country, the state owns land. Kevin Cahill (‘Who Owns The World’, 2010) argues that Queen Elizabeth II is the largest land owner on Earth, as she possesses the UK, Canada, Australia, New Zealand and much more, amounting to one-sixth of the Earth’s surface. In his latest column, Paul van der Molen discusses various historical examples to show that state land is often land just stolen from the citizens. When Captain Cook landed at Botany Bay in Australia in 1770, he proclaimed the Declaration of Possession, based on the doctrine of ‘terra nullius’, bringing all land into the possession... (read more)
2017-11-09 12:55:02

GPS Embedded Smart Antenna/Receiver

Tallysman Wireless has released the TW5115 Embedded Smart Antenna/Receiver. It features the STMicroelectronics STA8058 Teseo WAAS, EGNOS and MSAS-enabled GPS L1 receiver IC, a high-performance, low-noise amplifier stage, a tight out-of-band BAR pre-filter to reject interference, and a perfectly tuned antenna element for maximum GPS signal reception, even in dense urban-canyon environments where multipath interference is prevalent, according to the manufacturer.     The TW5115 comes in a very compact, low profile (7.6mm) form factor, with a NMEA 0183 standard output and RS232 and CMOS interface.   The TW5110 interface is a 6 pin ribbon connector, providing NMEA 0183 standard... (read more)
2011-11-23 10:39:16

Tallysman Introduces New Smart Antenna

Tallysman, Canada, has introduced the TW5340 smart antenna. This antenna pairs Tallysman's Accutenna technology antenna with STMicroelectronics’ Teseo II receiver. This combination makes this smart antenna among the most accurate smart antennas for use in any environment, including urban canyons. The TW5340 is a multi-constellation GNSS Smart Antenna which provides simultaneous GPS/GLONASS/SBAS reception. It is designed for use in professional grade applications such as precision timing, network synchronisation, low current applications, and tracking/positioning applications. To illustrate the advantages of this technology coupling, simultaneous recordings of vehicle position using two smart antennas, one with and one without Tallysman’s Accutennatechnology, in an... (read more)
2014-11-07 09:28:33

Luxembourg City Migrates to Elyx

The City of Esch-sur-Alzette (Luxembourg), which has been using STAR-APIC software since 1994, has started migration to the Elyx GIS product suite. After a study phase during which the new STAR-APIC software suite was presented in demonstrations, the mapping/graphics service of the City of Esch-sur-Alzette has decided to migrate to Elyx. The team involved in this migration is composed of five people who are responsible for base maps, the development plan, specific development plans, guide plans, road maps and orthophotos. The City of Esch-sur-Alzette started its adventure with STAR-APIC in 1994 when the mapping/graphics service of the city acquired the... (read more)
2012-12-11 09:46:02

City Map to Virtual Reality

3D Reconstruction Models of Cities
3D city models, as we know them today, originate from traditional city maps. The reconstruction of historical architecture using computer models not only relies on the traditional model maker’s art but still more on the art and techniques for creating city maps. Maps of cities have always been resources for architectural research and for creating 3D reconstructions. The author gives examples on the use of maps for creating 3D reconstructions of cities. The reconstruction of historical architecture using computer models relies not only on the art of the traditional model-maker, but still more on the art and techniques of creating... (read more)
2005-10-27 12:00:00

Serious Gaming Meets City Planning

Tygron, a start-up based in Delft, The Netherlands, was once described as ‘the Johan Cruijff of Dutch water management’. This innovative 3D software company applies serious gaming techniques within city planning. The firm has now launched a new release of its software, which is already being used for many purposes worldwide: from hurricane-proofing uptown New York to simulating urban planning problems in Australia. The fully developed 3D urban planning tool encourages stakeholder engagement in projects and hence creates greater support for spatial solutions. From climate issues to urban infrastructure, the results are more realistic than ever thanks to the use... (read more)
2015-03-03 11:12:46

GIS in City Fire Hazard

Petrol Station Vicinity Vulnerability Assessment
Petrol stations contain high concentrations of highly flammable substances. Fire and explosions may cause huge damage, injury and loss of human life. The authors show how GIS can help in assessing the vulnerability of the vicinity of filling stations. The main causes of petrol filling stations catching fire include sparks from a vehicle or electrical short-circuit, cigarette lighting and reservoir leakage after earthquake and subsequent fire. For example, on September 28th 2005 in Dehradun, a suburb of New Delhi, a petrol tanker caught fire during emptying. A spark produced by a refilled scooter setting off caused the accident. A motorcycle... (read more)
2006-07-24 12:00:00

Applying 3D City Models

Intervisibility, LBS, Sunlight/shadow Analysis, Air and Noise Pollution
Planning, designing and managing the urban environment require appropriate decision-making. Here the availability and use of three-dimensional (3D) geo-information in the form of 3D city models is crucial. The authors give examples of how 3D city models can be used for applications including determination of intervisibility between objects, Location Based Services (LBS), sunlight/shadow analysis, and air and noise pollution. Three-dimensional city models include Digital Elevation Models (DEM) of ground surface and 3D models (geometry and attributes) of buildings and other objects. Applications such as analysis of sunlight and shadow of buildings in densely populated areas require, in addition to 3D... (read more)
2006-02-23 12:00:00

Map of Birmingham's City Life

High-resolution aerial photography is being used to create a new map of Birmingham, UK. Supplied by aerial survey specialist Bluesky, the digital imagery will be used to create a royalty-free base map to support Interconnect Birmingham, a project to raise the profile, image and identity of the city. The aim is to create an interactive map which will feature visitor attractions, hotels, green spaces and other places of interest, thus helping to improve the experience of visitors to the city and to support a multi-channel, multi-modal movement and information system.       "One of the key aspects of the... (read more)
2011-08-25 01:53:46
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