is prohibited.
three views (map, table, chart) that use semiology synchronization (in a context of
car accidents analysis).
The semiology synchronization helps to keep a visual homogeneity from one display
to the other and from one navigation operation to the other. However, it involves taking
care of potential collisions of graphical semiology rules since theoretically, the
same rules do not always apply to all view types. Many more geographic visualization,
or geovisualization, features can be incorporated. Geovisualization represents a
research field of its own and can be defined as a private activity in which unknowns
are revealed in a highly interactive environment. It is an active process in which an
individual engages in sorting, highlighting, filtering, and otherwise transforming
data in a search for patterns and relationships (MacEachren, 1994).
SOLAP tools may be used to implement a wide range of spatially referenced decision
applications. For example, a road network management application may help
to find, in seconds and without SQL queries, the effects of variations in the annual
average daily traffic on the average road conditions, or calculating the intervention
costs (Rivest et al., 2001). In a similar way, it is possible to analyze the number
and the gravity of car accidents according to their position on the road network, the
characteristics of the road, or the environment and the time period (Rivest, Gignac,
Charron, & B?©dard, 2004).
Pages:
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570