Енергооптимальні технології, логістика та безпека на транспорті
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Item Методи підвищення несучої здатності неоднорідного земляного полотна(Видавництво Львівської політехніки, 2023-11-09) Кравець, Іван; Ковальчук, Віталій; Національний університет “Львівська політехніка”The earth layer is the most responsible engineering structure of the transport industry, which acts as the foundation of roads. Safety, reliability and permissible speeds of transport units depend on the ground surface. The work presents modern soil strengthening technologies that are used in transport construction to strengthen subgrade soils by improving their physical and mechanical properties. It has been established that it is possible to increase the bearing capacity of non-homogeneous road subgrades by using geotextile materials and reinforcing the subgrade with the use of advanced "jet-grouting" technologies. One of the methods of increasing the deformability of a non-uniform road surface is the reinforcement of the surface with tubular drains.Item Світовий досвід забезпечення безпеки руху пішоходів при перетині залізничних колій на пішохідних переходах(Видавництво Львівської політехніки, 2023-11-09) Лесів, Юлія; Ковальчук, Віталій; Національний університет “Львівська політехніка”The safety of pedestrians crossing railway tracks is relevant all over the world. The article provides statistical data on pedestrian injuries at railway crossings in Ukraine, which prompts the improvement of safety measures on railway tracks for pedestrians. The ways of increasing the safety of pedestrian traffic across the railway track, which are used in world practice, are considered, in particular, active and passive measures for the safety of pedestrian traffic in the countries of Europe, America and Australia. By modernizing the existing crossings and using world experience for the design of new railway crossings, we will be able to increase the safety level of pedestrian movement across railway tracks, especially in urban areas.