A generalised layout is proposed for planning the production of a road marking thermoplastic that can be adopted as the basis for flexible improvement and development as the formulation of the marking material changes. Achievable production-line technical design indices for manufacture of the thermoplastic are determined.
The organization of traffic is a complex of engineering and organizational arrangements aimed at maximizing the use of traffic flows opportunities represented by the road geometric parameters and condition. The article deals with an example of using software modeling for creating a digital twin of a complex intersection in Saratov in order to verify the engineering hypotheses concerning the effective transportation planning. The current traffic situation in the PTV VISSIM program is simulated. The transportation planning engineering hypothesis proposed and simulated the solution options of changing the working traffic light duration at the intersection for verifying and widening the carriageway by adding a lane. The analysis of two models options allowed determining the most effective transportation planning measure in a given transport hub of the city with a high level of traffic delays, which is actually the duration change of the working traffic light at the intersection. The software modeling application is confirmed for creating a digital twin complex intersection in Saratov.
The basis of the technological evaluation of the composition of thermoplastic for road marking is the calculation of production costs associated with a particular technological scheme. In the most General form, any process for obtaining marking thermoplastics consists of the following technological operations: preparation of components; preparation of thermoplastic mixture; rastarivanie and packaging.
In principle, such schemes currently exist two: a scheme that determines the production of thermoplastics in the form of a dry mechanical mixture; a scheme that determines the production of thermoplastics in the form of homogeneous fused blocks.
Mixing of all components according to the first scheme in the mixer is made within three-five minutes. During mixing, liquid components are added to the mixer, if the latter are provided by the formulation. The finished mixture is discharged through a hole in the bottom of the mixer body.
Production under the second scheme has a number of undoubted advantages. This is a thorough dispersion of the components that make up the thermoplastic, which ensures uniformity of its properties in any part of the batch of manufactured material. When transporting the thermoplastic in the container does not require the shelter from atmospheric precipitation and can be stored for unlimited time in unheated warehouses.
From the given data it is visible that the developed compositions received as a result of performance of the present work, in comparison with analog possess the raised adhesion to asphalt concrete and elasticity in a temperature range from -10 oC to 20 oC. These indicators allow to draw a conclusion about the best resistance of the developed material in operating conditions, especially at negative temperatures.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.