| Abstract [eng] |
The poor condition of the road surface is a critical problem not only on city streets, but also on national roads. Cracks, surface defects, ruts, cross slope and road width inconsistencies more or less affect all roads. Timely detection of defects and their management and regular maintenance can stop the progression of defects and keep the road in satisfactory condition. There is a methodology for assessing the condition of road surfaces, but it is adapted to roads of state importance, and such measurements are performed not only in Lithuania, but also abroad, but they are very expensive. After conducting a review of the literature, it was found that there is no methodology for assessing the road surface condition of city streets The aim of this work is to create an optimal methodology for spatial assessment of street (road) pavement condition based on topographical data analysis and 3D spatial modeling, which could be applied to city streets. Various methods were used to perform the work: literature analysis, development of methodological schemes and the methodology itself, accumulation of spatial data and their processing, restoration of existing surfaces and creation of a three-dimensional model, summarization of results, formulation of conclusions. The work consists of an introduction, three main parts with subsections, conclusions and proposals, a bibliography, a summary in Lithuanian and English, and appendices. When developing the methodology, first of all, the literature on roads and streets, their condition, damage to the road surface, assessment methodologies was analyzed. After identifying the main road surface defects, a methodology was developed that could be used to assess the condition of the road surface. After creating the methodology and applying it in practice, it was determined that the section of Virvytė Street in Telšiai between Beržai and Butkai Juzė Streets is given an evaluation of 96.66 points out of 200 possible points for giving priority to road repair. After creating three-dimensional models, it was noticed that the entire street is indented from 5 to 15 centimeters from its initial state at the center of the street - the axis. 266.81 m2 of street asphalt would need to be milled for the repair of potholes, and about 13.34 m3 of new asphalt would be needed for their repair, which is about 32 tons. The obtained results make it possible to determine the priority score for street repair, and to preliminarily estimate the amount of necessary materials. The collected and processed data is not only used to determine the amount of street defects, but due to its accuracy, the data can be used for further design and repair work. |
