Abstract
Geographic information systems (GIS) have developed in response to a range of needs, and provide highly structured environments for working with particular classes of information. The environment and structure of a GIS is defined by its data model; the paper reviews the basic data models of GIS. The needs of discrete transportation modeling have led to a number of extensions of the basic data models. Further necessary extensions are identified. The paper ends with a discussion of appropriate strategies and future directions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 19-44 |
| Number of pages | 26 |
| Journal | Geographical Systems |
| Volume | 5 |
| Issue number | 1-2 |
| State | Published - Dec 1 1998 |
| Externally published | Yes |
Keywords
- Basic data models
- Discrete transportation modeling
- Necessary extension
ASJC Scopus subject areas
- Earth and Planetary Sciences (miscellaneous)