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Services | Backbone operation | Technologies | R&D | Networks | Qualification | Events |
 | Geoprocessing: ReMAVs map citiesImagine managing a city without knowing where the water pipes, the phone and electricity wiring pass - not to mention the private sector - optical fiber cables belonging to telecommunications companies or cable television. How can a person devise urbanistic strategies without having data regarding the population density of each region, without knowing where the rivers and underground water tables run and without getting information about the existing highway network? It is necessary to invest in geoprocessing or GIS - Geographic Information Systems, as it is more widely known - so that all these data can be available and consolidated. The High Performance Metropolitan Networks in Brazil (ReMAVs) are developing applications in the geoprocessing field, benefitting from the infrastructure of advanced networks implanted. - The speed of ATM network has made it possible to implement an alternative solution to the decentralization of Goiânia's Geographic Information System (SIGGO): the functions demanding great processing capacity can be executed in the client servers. The access to the great volume of data necessary to these functions will be made possible through the speed of the ATM network. The server will then furnish data and basic funtions demanding little processing capacity - exemplified Wilda Soares Lemos, coordinator of the geoprocessing project of Goiânia's ReMAVs. Public access to geographic data The project in Goiânia aims at making the collected data available to the whole community through the Internet. Nowadays, only the people participating in the ReMAV have access to the application. The SIGGO has used as its basis Goiânia's Basic Digital Urban Map (MUBDG) and the municipal database . "Most implemented functions make spacial analyses exploring the topological relationships among the groups and process almost all the objects of the groups involved in the relationship", explained Wilda. The project is led by Comdata - Goiânia's Data Processing Company. Making the data available to the community in general is also the intention of Renato Moreira Hadad, coordinator of ReMAV geoprocessing group in Belo Horizonte. "I believe that, after the information has been processed and consolidated, it will be made available on an Internet site", plans Renato. The project, led by the Institute of Applied Geosciences, still depends on completing the installation of the local network. Broadband potentializes projects The coordinator of ReMAV's geoprocessing staff in Salvador, Lígia Atta, points out that, to have a satisfactory performance in an application of this size, a broadband structure is necessary due to the great amount of data and graphic resources used. The implantation of backbone RNP2 makes the geographical information about a certain region available to the whole country, producing greater integration and an exchange of experiences among its affiliates. - The implantation of these applications will help several partner institutions to make decisions, besides offering support to the work of public and private institutions devoted to urban planning in the city of Salvador - stated Lígia. The general coordinator of ReMAV in Recife, Carlos Ferraz, hopes that the broadband becomes really extensive so that even those operating in baseband can have access to a great part of the applications, though, at first, the project is supposed to serve only the technicians in the groups connected to ReMAV. - In general, the goal of the project is to make the high performance network a ring with access points at lower speed to other users/groups, who, even with the baseband going as far as those points, will be able to use many of the applications. In other words, since the information will travel at high speed until it reaches the closest point to which the user is connected, this single lower speed link will not have great impact on the results - explained professor Carlos Ferraz. Going beyond regional borders Since this May, with the beginning of the implantation of RNP's new backbone, the use of advanced applications nationwide has become possible. Nowadays, the backbone already reaches all the regions in Brazil at speeds as high as 155 Mbps. Thus, the applications get a new boost, as Ferraz points out: - Soon, we hope to be exchanging information among the states so as to adapt the applications regionally, nationally and, in the future, internationally, as in Mercosul, for instance. The major GIS application of the ReMAV in Recife is Unibase Piloto, which creates and makes available a single cartographic database of the city of Recife. The database, supplied by the City Hall, is managed and updated by EMPREL - Empresa Municipal de Informática. Starting from Unibase, there are three sub projects: SISGEOP - Georeferential Project of Police Operations , which allows the criminal analysis and statistic mapping of the crimes committed in the metropolitan area ; Metropolitan Guide Project - GIS for the control of dynamic routes based on traffic information , with a potential to be extended to the area of tourism , with street maps, routes, recommended means of transportation, etc.; and SGA - Environmental Management System, for monitoring and environmental control of the metropolitan area of Recife. For more information:
[RNP, 10.18.2000] |