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    Route-Aware Edge Bundling for Visualizing Origin-Destination Trails in Urban Traffic

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    Date
    2019
    Author
    Zeng, Wei
    Shen, Qiaomu
    Jiang, Yuzhe
    Telea, Alexandru
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    Abstract
    Origin-destination (OD) trails describe movements across space. Typical visualizations thereof use either straight lines or plot the actual trajectories. To reduce clutter inherent to visualizing large OD datasets, bundling methods can be used. Yet, bundling OD trails in urban traffic data remains challenging. Two specific reasons hereof are the constraints implied by the underlying road network and the difficulty of finding good bundling settings. To cope with these issues, we propose a new approach called Route Aware Edge Bundling (RAEB). To handle road constraints, we first generate a hierarchical model of the road-and-trajectory data. Next, we derive optimal bundling parameters, including kernel size and number of iterations, for a user-selected level of detail of this model, thereby allowing users to explicitly trade off simplification vs accuracy. We demonstrate the added value of RAEB compared to state-of-the-art trail bundling methods on both synthetic and real-world traffic data for tasks that include the preservation of road network topology and the support of multiscale exploration.
    BibTeX
    @article {10.1111:cgf.13712,
    journal = {Computer Graphics Forum},
    title = {{Route-Aware Edge Bundling for Visualizing Origin-Destination Trails in Urban Traffic}},
    author = {Zeng, Wei and Shen, Qiaomu and Jiang, Yuzhe and Telea, Alexandru},
    year = {2019},
    publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
    ISSN = {1467-8659},
    DOI = {10.1111/cgf.13712}
    }
    URI
    https://doi.org/10.1111/cgf.13712
    https://diglib.eg.org:443/handle/10.1111/cgf13712
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    Eurographics Association copyright © 2013 - 2023 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA