RESEARCH OF
USERS REQUIREMENTS FOR CREATING TOPOGRAPHIC
MAP CONTENTS AIMING AT INTERBRANCH GIS CARTOGRAPHIC OPTIMIZATION
S.V.Erukov, M.A.Bazina
Verkhnevolzhskoye Aerogeodetic Enterprize
vagp@mts-nn.ru
The
information on the Earth, its territories, characteristics of the natural and
artificial objects by means of maps, are one of the society most ancient
historical needs in perceprtion of world around. This
interest is caused not only by scientific researches of a condition and change of
the Earth shape, but also by aspiration of people to management of the
political, social and economic and other territorial processes subordinated by
needs of a society in rational distribution of resources with the purpose of
their effective use. Maps in modern GIS are not only the initial information
for fulfilment of calculation works, but also a
source of the information reception for the person making decision by results
of calculations. It is necessary to note, that redundancy of the information in
a map placed on the screen not less than its lack complicates the correct
decision making. According to purpose of maps, in conditions of above-stated
spheres changing needs, evolutionary methods of the information representation
on territory is the major problem of a cartographical science and manufacture.
In
the present research the various consumers requirements to structure of the
content and information representation on territory are formalized according to
the theory of decision making.
In
the report four categories of the topographical information complexity
according to conditional spheres of application are presented: political,
non-productive, industrial, scientific. Their characteristics are also given.
The presented classification of categories, in opinion of authors, is optimum
criterion of the cartographical information utility for various consumers and
is applied in the further calculations as factors of utility index according to
Bayesian-Laplas technique.
Use
of four criteria (categories) is optimal, and their greater quantity does not
render influence on the end result of calculations as their formalization has a
subjective basis.
By
results of researches the following data are analyzed:
-
Distribution of topographical map elements in structure of operating symbols;
-
Relative parameters of detail degree of the topographical information
distribution, depending on application sphere;
-
Relative exponents of the topographical information actuality depending on
timing of its use;
-
Relative exponents of the information on territory use depending on territorial
problems;
Research
of topographical map elements users needs is carried out by means of
interpretation of the purposes and the problems presented in valid statutes of
enforcement authorities: Federal ministries, State committees, Federal services
and other enforcement authorities (