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The Architecture Of Mobile Traffic Map Service

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Retrievalsprache
Offene Menge
Freeware
Information
Extrempunkt
Bildschirmfenster
Computeranimation
Homepage
Spezialrechner
Last
Client
Interaktives Fernsehen
Konditionszahl
Punkt
Scherbeanspruchung
Benchmark
Metropolitan area network
Softwaretest
Caching
Sichtenkonzept
Auswahlverfahren
Generator <Informatik>
Wechselsprung
Festspeicher
Konditionszahl
Elektronischer Fingerabdruck
Server
Client
Ordnung <Mathematik>
Familie <Mathematik>
System Dynamics
Wasserdampftafel
Mathematisierung
Content <Internet>
Mathematische Logik
Unternehmensarchitektur
Open Source
Weg <Topologie>
Domain-Name
Bereichsschätzung
Migration <Informatik>
Datentyp
Mobiles Internet
Delisches Problem
Inhalt <Mathematik>
Datenstruktur
Tropfen
Dispersion <Welle>
SQL Server
Elektronische Publikation
EDV-Beratung
Caching
Identitätsverwaltung
Wort <Informatik>
Streaming <Kommunikationstechnik>
Chipkarte
Prozess <Physik>
Skalierbarkeit
Sondierung
Strategisches Spiel
Fahne <Mathematik>
Prozess <Informatik>
Bildschirmfenster
Total <Mathematik>
Mapping <Computergraphik>
Einflussgröße
Web Services
Lineares Funktional
Äquivalenzklasse
Prozess <Informatik>
Physikalischer Effekt
Datenhaltung
Netzwerk-gebundene Speicherung
Kanal <Bildverarbeitung>
Spieltheorie
Übergang
Programmierumgebung
Frequenz
Strategisches Spiel
Dateiformat
Information
Schlüsselverwaltung
Aggregatzustand
Server
Matrizenrechnung
Polygonnetz
Zahlenbereich
E-Mail
Kombinatorische Gruppentheorie
ROM <Informatik>
Physikalisches System
Benutzerbeteiligung
Selbst organisierendes System
Message-Passing
Proxy Server
Luenberger-Beobachter
Biprodukt
Ordnungsreduktion
Response-Zeit
Softwareentwickler
Transaktionsverwaltung
Bildgebendes Verfahren
Graphiktablett
Schreib-Lese-Kopf
Beobachtungsstudie
Wald <Graphentheorie>
Division
Zwei
Mathematisierung
Routing
Datenreplikation
Physikalisches System
Endogene Variable
Office-Paket
Mapping <Computergraphik>
Mereologie
Mini-Disc
Verkehrsinformation

Metadaten

Formale Metadaten

Titel The Architecture Of Mobile Traffic Map Service
Serientitel FOSS4G Nottingham 2013
Autor Jang, BJ (Gaia3D Inc.)
Shin, Hayan (Gaia3D Inc.)
Lizenz CC-Namensnennung - keine kommerzielle Nutzung - Weitergabe unter gleichen Bedingungen 3.0 Unported:
Sie dürfen das Werk bzw. den Inhalt zu jedem legalen und nicht-kommerziellen Zweck nutzen, verändern und in unveränderter oder veränderter Form vervielfältigen, verbreiten und öffentlich zugänglich machen, sofern Sie den Namen des Autors/Rechteinhabers in der von ihm festgelegten Weise nennen und das Werk bzw. diesen Inhalt auch in veränderter Form nur unter den Bedingungen dieser Lizenz weitergeben
DOI 10.5446/15579
Herausgeber FOSS4G, Open Source Geospatial Foundation (OSGeo)
Erscheinungsjahr 2013
Sprache Englisch
Produktionsort Nottingham

Inhaltliche Metadaten

Fachgebiet Informatik
Abstract MOLIT(Ministry of Land, Infrastructure, and Transport) has established NTIC(National Transport Information Center) for effective management of various kinds of transportations in South Korea and released several services that people can use. Gaia3D Inc., has involved in one part of mobile service which displays traffic status on roads, streets, and highways up on geographical map, making people easily check the status of traffc wherever they’re heading. Gaia3D Inc., will introduce not only the experience of implementing mobile traffic map service (iPhone App, Android App, and Mobile Web Client) showing traffic on roads, streets, and highways at NTIC using Squid Proxy Server, GeoServer, and SQL Server but also advanced architecture coming up in 2014. NTIC system collects all kinds of real time traffic data of all highways, routes, streets, and roads in South Korea and divides those collected traffic data into three colors in green, yellow, and red by speed. These colorized traffic data are mashed up with map data to service on mobile devices. Servers carry out tiling traffic map in every 5 minutes and clients receive and display those tiled data. This system aimed at tolerating peak times of two major holiday seasons in South Korea - Chuseok(Korean Thanksgiving day) and Seolnal(Lunatic New Year’s day) when almost 15 million people per day travel at the peakest dat and about 8 million vehicels are poured out to roads, streets, and highways, so the system should be designed to safely handle over 100,000 concurrent connections. The whole system is consisted of two Cache Servers with Squid Proxy, six Map Server with GeoServer, and three Database Server with SQL Server. Real time traffic information and road lines are managed in SQL Server and provided to GeoServer. Traffic map tiles are produced in GeoServer and are passed to Cache Server. The client is designed to request tiles via interface of WMTS(Web Map Tile Service) protocol with Time Tag. The very initail architecture designed in 2012 somehow managed to endure traffic loads at peak times, but had some problems, which was quite disappointing and unexpected results. In order to improve the system, we’ve mainly focused on the enhancement of scalability. Also, we’ve newly redesigned the system into seperating tile producing servers and managing static contents using NGINX web server.

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