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TRANSPORT OF DANGEROUS GOODS AND RISK MANAGEMENT 182Hence, it is necessary to define or replace the definition (if view with that name already exists in the database) ofviews NASELJENA_MESTA which will have columns (number, topology, geometry) so that they will be taken asan existing table column object, provided that the code topology is equal to the number of 25.Middle layer - ServerThe primary function of the middle layer is to receive a request from the client, then the execution of certainfunctions which are generated by the request of a client, creating and sending a "response" to a client (in this case itwould be a map).Depending on whether the client sent a request for static or dynamic content, services will either access a databaseor will return already prepared (static) page as response to a client.If the required content is dynamical, on the server must be programs whose execution would be generated by thecontent of the communication service to a database. These programs that are executed on the server are calledservlets and written mainly in Java code.When you use the word Web, first of all it is reference to three major, separate standards and tools based on:language for marking hypertext (known as HyperText Markup Language, HTML), protocol for transferringhypertext (known as HyperText Transfer Protocol, HTTP) and packet of network protocol TCP/IP.For structuring and displaying data in a Web search engine, the most appropriate is HTML. Network protocolTCP/IP transfers data between applications on the Internet. Moreover, HTTP is a component that connects all layersin the GIS three-layer architecture, and works as follows: a client web browser sends a request to a Web server forspecific resource, and a Web server then sends to the browser a response.Response to HTTP resource transfers required - HTML document, image or output of a program - back to the Webbrowser as a "useful load".Web services operate on the principle of "Publish - Find - Bind," which means that there is a registry service, inwhich all publicly available service publishes its resources.The client firstly checks the existence of the required services in the directory service, and then sends the request toa provider, according to their needs. In Figure 4 is shown the scheme of the model P-F-B. In the web services are:WMS - Web Map Service,WFS - Web Feature Service,WCS - Web Coverage Service andCSW - Catalog Service for Web.
TRANSPORT OF DANGEROUS GOODS AND RISK MANAGEMENT 183Figure 4. Model P-F-BWeb Map Service is the OGC web service that provides data in a format of geographic maps. Instance of thisservice is called MapServer. This service is available through HTTP (Hypertext Transfer Protocol) clients on theInternet. HTTP generally supports two types of requests: GET and POST. One or both of the requests can beforwarded to the WMS, where the support is required for the GET method, while the support for the POST methodis optional. When specifications URL (Uniform Resource Locator) address to access the WMS, it is reservedseveral characters defined by international standard, whose meaning is shown in Table 3.Tabela 3. The meaning of certain charactersCharactersThe Meaning? Marks the beginning of questionable string&Separator between parameters in questionable string= Separator between name and value parametersSeparator between individual values in list-oriented parameters (such as the BBOX, LAYERS and’STYLES in the Get Map request)+ Character for the "space" characterThe request which is to be sent to a server defines the parameters. Each parameter must be defined by the titlesetting, and each parameter can have one or more allowed values. If you use the POST method, then the serverreturns an XML (Extensible Markup Language) document. The content and structure of the required syntax isshown in Table 4:Table 4. The content and structure of the syntax requiredURL Componentshttp://host[:port]/path[?{name[=value]&}]name=value&DescriptionURL prefix. [] Means 0 or 1 case of optional part;{} Means 0 or more casesThe request parameter names and values
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ISBN 978-86-83059-06-5Editor-in-Chi
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TRANSPORT OF DANGEROUS GOODSAND RIS
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EDITORIALLand transport Pan- Europe
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Contents:INTEGRATED MODEL AND INFOR
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TRANSPORT OF DANGEROUS GOODS AND RI
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Figure 3. Algorithm of Security Dat
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Figure 5. Algorithm of Ship Waste M
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Figure 7. Original Algorithm of Imp
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Figure 11. Original Algorithm of th
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Figure 13. Original Algorithm of th
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Figure 15. Original Algorithm of Ot
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Figure 18. The original algorithm o
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Figure 20. Original Algorithm of Ac
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Figure 23. Original Algorithm of In
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Figure 25. Original Algorithm of Ac
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Table 1. Classification of waste th
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Table 3 Classification of waste tha
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Table 3b Classification of waste th
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Table 3d: Classification of waste t
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Table 3f: Classification of waste t
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Table 6 Classes of the compounds th
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Table 6b Classes of the compounds t
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Table 8. Typical hazardous waste ma
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Figure 5.- Life cycle for oiled sol
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Figure 13. Original algorithm of th
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Software part of Sledat systemTRANS
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BIBLIOGRAPHYTRANSPORT OF DANGEROUS
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UDK:614.83:624.21TRANSPORT OF DANGE
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Page 139 and 140: TRANSPORT OF DANGEROUS GOODS AND RI
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Oil, gas and mineralsTRANSPORT OF D
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UDK:811.111'25TRANSPORT OF DANGEROU
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CIP - Каталогизација
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