The case for unified linear reference system

The e-map is the most important part in Vehicle Navigation System. Functional requirements for the road map database vary in different navigation phases. Though there are various road network models, their traditional road network structures, unfortunately, do not solve the problem well. Therefore this paper proposes a featurebased data model with two level structures. The level-one is a feature-oriented geometry network used for map showing the level-two is a node-link based logical network for route planning. Further, a two-layer network topological structure in logical network is presented, which accords with the practical driving habit better than traditional way treating the entire road network as one graph.

show abstract

Network Analysis in Geographic Information Science: Review, Assessment, and Projections

Curtin¹

2007

Cartography and Geographic Information Science

View full text Add to dashboard Cite

Network data structures were one of the earliest representations in geographic information systems (GIS), and network analysis remains one of the most significant and persistent research and application areas in geographic information science (GIScience). Network analysis has a strong theoretical basis in the mathematical disciplines of graph theory and topology, and it is the topological relationships inherent in networks that led to revolutionary advances in GIS data structures. Networks can represent an alternative datum for geo-location in the context of linear referencing and support a set of tools for graphical display known as dynamic segmentation. Many network location problems are among the most difficult to solve in terms of their combinatorial complexity and, therefore, provide both a challenge and an opportunity for GIScience researchers. Because elements of network analysis appear in a wide range of academic disciplines-from physics, to sociology, to neurobiology-there are ample opportunities for interdisciplinary investigations of emerging research topics.

show abstract

The case for unified linear reference system

Cited by 3 publications

References 1 publication

Dynamic location: an iconic model to synchronize temporal and spatial transportation data

Dynamic location: an iconic model to synchronize temporal and spatial transportation data

Feature-based two level structure road network model for navigation

Network Analysis in Geographic Information Science: Review, Assessment, and Projections

Contact Info

Product

Resources

About