The article is devoted to the description of the mode of presentation of elements
and topology of schemes of outdoor technological equipment, such as schematic
plans of stations, two-line plans of stations and traction current canalization
schemes in the branch format for technical documentation for interlocking
The drawing of schematic plan is considered as a non-scale single-line image
of the station’s track development. An approach to consideration of the elements of
this drawing is based on the fact that currently there are about 100 basic symbols
for elements displayed in the drawings outside technological devises. In addition,
some types of elements are displayed differently in different outside technological
devises drawings. In this way all elements images displayed in the drawings are
proposed to be divided into two large groups – dynamic and static. Basic elements
of schematic plans of the stations, including those describing the topology of the
station, are suggested to represent by means of dynamic elements. Each of these
elements will comprise both a graphical representation of the specifi c entity in the
drawing and the parameters of the real device of the railway station.
Also in this article an approach for representing the schematic plan of the
station as a graph is proposed, because the elements of the path development completely
describe the topology of the station, and the location of each element, except
the path section, can be specifi ed as a point, and the path segment – as a segment.
So the topology of any station is proposed to be described by two sets: a set of
points showing the topology of the schematic plan and the set of segments formed
by the points of the set. Thus, by means of single elements and connections between them, this approach will enable to build more complex data structures, the basic of
which is the track circuit. This approach enables to form a model of the track circuit,
which can be obtained automatically from the technical documentation.
Many of the nuances were simplifi ed and not too detailed to facilitate understanding
of the concept of description. Full and general description of the framework
can be obtained in the offi cial technical documentation.
computer-aided design systems; electronic branch for technical documentation;
branch framework for technical documentation