1 / 4

Hang Yue , Graduate Research Assistant Elizabeth G. Jones, Ph.D., Associate Professor

UNIVERSITY OF NEBRASKA-LINCOLN. Archiving Capability of Spatio -temporal Data in Different Highway Railroad Grade Crossings Databases. Hang Yue , Graduate Research Assistant Elizabeth G. Jones, Ph.D., Associate Professor University of Nebraska-Lincoln.

devaki
Download Presentation

Hang Yue , Graduate Research Assistant Elizabeth G. Jones, Ph.D., Associate Professor

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UNIVERSITY OF NEBRASKA-LINCOLN Archiving Capability of Spatio-temporal Data in Different Highway Railroad Grade Crossings Databases Hang Yue, Graduate Research Assistant Elizabeth G. Jones, Ph.D., Associate Professor University of Nebraska-Lincoln

  2. UNIVERSITY OF NEBRASKA-LINCOLN Relational Databases • Strengths • Widely used • Powerful tools • Limitations • Limited ability to capture spatial relationships • Time must be represented in a discontinuous way UNL HRGC Relational Database Representation

  3. UNIVERSITY OF NEBRASKA-LINCOLN GIS Spatial Databases • Strength • Combine time with traffic attributes and continuous spatial data • Limitation • Time is also discontinuous in GIS UNL HRGC Geo-spatial Database Representation

  4. UNIVERSITY OF NEBRASKA-LINCOLN Constraint Databases • Strengths • Time-dependent, multi-dimensional, relative space • Dynamic view of multiple data elements • Limitation • Models of geographic elements (due to current software limitations) UNL HRGC Constraint Database Representation

More Related