Models and queries in a spatio-temporal GIS

2000 ◽  
pp. 39-52
Keyword(s):  
Temporal Gis ◽  
Spatio Temporal

scholarly journals Building a Spatio-temporal GIS Database about Boundaries of Municipalities

2011 ◽  
Vol 19 (2) ◽  
pp. 139-148 ◽  
Author(s):  
Takashi KIRIMURA ◽  
Tomoki NAKAYA ◽  
Keiji YANO
Keyword(s):  
Temporal Gis ◽  
Gis Database ◽  
Spatio Temporal

scholarly journals DEVELOPMENT OF A GIS-BASED COMPOSITE PUBLIC TRANSPORT ACCESSIBILITY INDEX

2019 ◽  
pp. 235-245
Author(s):  
Anila Cyril ◽  
Raviraj H Mulangi ◽  
Varghese George
Keyword(s):  
Public Transport ◽  
Temporal Gis ◽  
Transit Service ◽  
Transport Accessibility ◽  
Service Accessibility ◽  
Bus Transit ◽  
Indian City ◽  
Spatio Temporal ◽  
Travel Impedance

The increasing interest in sustainable modes of transport such as public transport has triggered the need for evaluation of accessibility to and from the transit service. Accessibility to the transit service determines the service attractiveness and hence better accessibility increases the demand. Although accessibility has been the focus of research in the past few decades, it still remains a concept that has been poorly defined and hence finding a theoretically good and operationally sound measure of accessibility is a challenging task. The objective of this paper is to develop a composite public transport accessibility index using Geographic Information System (GIS) as a case study of an Indian city, Trivandrum. This concept is a spatio-temporal GIS-based public transport accessibility model which includes travel modes of walking and bus transit, travel impedance and service coverage of the transit network. The methodology used in the study is based on the factor that the index should measure the accessibility which comes from proximity to bus stops and land use destinations and the proportion of the population served.

Spatio-Temporal Object Modeling

2010 ◽  
pp. 137-143
Author(s):  
Bo Huang ◽  
Magesh Chandramouli
Keyword(s):  
Query Language ◽  
Geospatial Data ◽  
Data Type ◽  
Generic Model ◽  
Object Modeling ◽  
Temporal Gis ◽  
Temporal Object ◽  
Spatio Temporal ◽  
Temporal Dimensions ◽  
Spatially Varying

Integrating spatial and temporal dimensions is a fundamental yet challenging issue in modeling geospatial data. This article presents the design of a generic model within the object-oriented paradigm to represent spatially-varying, temporally-varying, and spatio-temporally-varying information using a mechanism, called parametric polymorphism. This mechanism allows a conventional data type (e.g., string and integer) to be enhanced into a spatial, temporal, and/or spatiotemporal collection type, and so an ordinary attribute can be extended with spatial and/or temporal dimensions flexibly. An associated object query language has also been provided to support the manipulation of spatio-temporal information. The design of the model as well as the query language has given rise to a uniform representation of spatial and temporal dimensions, thereby offering a new option for the development of a spatio-temporal GIS to facilitate urban/environmental change tracking and analysis.

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