01010792

Component

https://doi.org/10.3141/1902-13

http://scholar.google.com...munt&publication_year=2005

Management of spatiotemporal information requires a more generic and consolidated data model to facilitate applications such as tracking land use parcel changes. This paper presents such a spatiotemporal data model in the context of object databases by extending the Object Data Management Group (ODMG) standard and examines its feasibility in a land use application. This model extends the ODMG object model with a parameterized type, TimeSeries<T>, which allows the shifting of spatial types into spatiotemporal types to support the representation of a series of states (i.e., the history) of an object. An object query language (OQL), spatiotemporal OQL (STOQL), which adds spatial and temporal dimensions to ODMG’s OQL, is also designed. A case study demonstrates that STOQL supports the formulation of various spatiotemporal queries pertaining to historical states of spatial objects as well as spatial changes, including spatial type substitution. The model and query language have been implemented by using an object-oriented language in a geographic information system environment.

01010784

English

pp 107-113

2005

Transportation Research Record: Journal of the Transportation Research Board

0309093722

Print

Figures (3) ; References (12) ; Tables (1)

Geographic information systems; Land use

Data model; Object query language; Query language; Spatiotemporal data; Tracking

Economics; Highways; Planning and Forecasting; Society; I10: Economics and Administration; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Nov 29 2005 2:50PM

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