As an object of the study, a network of public-use highways of the Tashkent
region was chosen.
The scientific novelty of the research is as follows
: -
a mathematical model has been developed that represents the patterns of
the relationship between indicators of the pavement condition index (PCI), which
makes it possible to assess the condition of the road surface in terms of the
International Roughness Index (IRI) and the condition of the road surface based on
the defects present in it;
-
taking into account the change in the evenness of the coating depending on
the speed of measurement of the results obtained when measuring with a laser
profilometer and a smartphone, mathematical expressions were developed that
represent the relationship between the results obtained on different devices at speeds
of 50, 60, 70 km/h;
-
in the process of planning short-term and long-term repair work on
highways, the influence of planned road repair work on improving the transport and
operational performance of roads is substantiated;
-
a decrease in the overall strength of the road surface, caused by an increase
in the temperature of the road surface under the influence of weather and climatic
conditions, was proved;
-
the methodology for planning repair work has been improved using transport
and operational indicators and optimization algorithms.
The practical results of the study are as follows:
- recommendations were developed for determining transport-operational
indicators of automobile roads using resource-saving methods and forming a
database for the automobile roads management system;
- the possibility of using geoinformation systems in monitoring the changes
in transport-operational indicators of automobile roads and planning repair works
was considered on the example of the road network of Tashkent region;
53
- the practical significance and economic efficiency of using the improved
method of planning repair work using genetic algorithms based on the transport and
operational indicators of highways was evaluated;
- recommendations for the use of the improved method in the management
of the republic's road network were developed.
