Abstract
The authors analyzed the existing regulatory documents and studies on the road surface evenness impact on the traffic flow speed, the transportation and traffic safety costs. Currently available methods of forming a plan of repair work are focused on the use of the roads diagnostics results according to the evenness level of the carriageway obtained with the help of thrusters. The transition to the international evenness index (IRI) requires a review of the previously obtained mathematical dependencies and existing approaches to optimizing the road network repair program. In this work, the authors established a correlation of the traffic flow average speed, losses from the road traffic accidents (traffic accidents) and the road transport costs from flatness of coverage. Based on the identified statistical patterns of changes in the IRI index, a method for calculating the road section length that requires the restoration of transport and operational indicators (TOI) is proposed. The developed mathematical model for optimizing the repair plan will make it possible to create a list of road objects taking into account their priority within the budget funding of the annual program. The proposed model is based on diagnostics and assessment of the territorial road network technical condition in the Volgograd region.
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