Anagyph

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Ing. Jana Hájkováhajkovaj_at_kiv.zcu.czFaculty of
Applied SciencesUniversity of West Bohemia,
Pilsen, CZ
Graphical Editor of Street Graphs
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Presentation Overview

• Motivation
• System JUTS (Java Urban Traffic Simulator)
• Graphical Editor
• Map Creation
• Road Net Finalization
• Generation of Road Elements
• Finishing the Map
• Conclusion

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Motivation

• very bad traffic situation in most cities and
  bigger towns
• in Pilsen - only macroscopic simulation exists
• microscopic simulation needed
• cooperation between the municipals of Pilsen city
  and the University of West Bohemia

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System JUTS (Java Urban Traffic Simulator)

• simulation system for a traffic simulation based
  on the real data measured inside the roads
• what can be a traffic simulation good for?
• to anticipate traffic jams
• to prevent problems during road reconstructions
• to obtain various statistics
• to simulate the possible situation after closing
  a parallel road or building a new one

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System JUTS (Java Urban Traffic Simulator)

• the system consists of several parts

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Graphical Editor

• input data (3 files)
• geographical data (text)
• description of the real crossroads (XML)
• output data (2 XML files)
• graphical part of the map (coordinates of map
  elements, types of lines and other information
  for drawing the map out)
• simulation part (logical connection of map
  elements, structure of the map)

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Map Creation

• input data loading
• automatical generation of basic road net
• connection of the neighbouring road segments and
  crossroads points
• determination of possible positions of crossroads

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Map Creation
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Road Net Finalization

• creating, deleting and translation of the map
  elements
• allocation of the particular crossroads to the
  prepared crossroads positions

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Road Net Finalization
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Generation of Road Elements

• automatical generation of crossroads and vehicle
  lanes
• creating the borders of the crossroads
• preprocessing of lanes for turning left and right
• particular map elements connection, creation of
  the map structure

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Generation of Road Elements
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Finishing the Map

• automatic generation of possible car positions in
  the crossroads
• definition of ways for driving through the
  crossroads
• creation of output files

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Finishing the Map
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Conclusion

• graphical editor for preparing simulation maps
  presented
• main functions and main features necessary for
  the style of work in the graphical editor were
  described
• in the future extension of functions for
  crossroads and vehicle lanes editing, enlargement
  view functions
• testing by responsible experts from the municipal
  traffic department

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Questions

• thank you for your attention