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Determining travel conditions on motorways for automobile transport based on the case study for Lithuanian highways

机译：基于立陶宛高速公路的案例确定汽车运输的高速公路行驶条件

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In Lithuania, the efforts are made to ensure the conditions of safe, comfortable and fast passenger and freight transportation on Lithuanian roads, satisfying geometric characteristics of their particular categories and the specified requirements to their pavement. The considered characteristics of pavement include its roughness, strength and the admissible rut depth and destruction level. Rest and Service Areas (RSAs) are usually set up at the roadside. The paper presents a description of the conditions specified for the movement of motor vehicles on the major Lithuanian roads in the seasons of warm weather and a Classification Model (CM) of the required conditions. It also provides the results of the evaluation of actual Travel Conditions (TCs) on the main Lithuanian roads by using the developed model. The obtained results show that in 2016 on the considered highways were good and very good, except for road A9, where the TCs were satisfactory. It is demonstrated that the distances between RSAs comply with the recommended distances. It is also shown that roughness of pavement and strength of the Structure of the Pavement (SP) depend on the destruction level of pavement. The values of such pavement parameters as roughness, rut depth and destruction level, which should not be exceeded because they help to ensure either comfortable or good TCs on Lithuanian highways, are given. The suggested model of road TCs can be used for determining the quality of TCs on highways.
机译：在立陶宛，努力确保立陶宛道路上的安全，舒适和快速的客运和货运条件，满足其特定类别的几何特征和路面的特定要求。所考虑的路面特性包括其粗糙度，强度以及允许的车辙深度和破坏程度。休息区和服务区（RSA）通常设置在路边。本文介绍了在温暖天气季节为立陶宛主要道路上的机动车行驶规定的条件，以及所需条件的分类模型（CM）。它还使用开发的模型提供了对立陶宛主要道路的实际行驶条件（TC）的评估结果。获得的结果表明，2016年在考虑的高速公路上都很好，非常好，除了A9公路上的TC令人满意。证明RSA之间的距离符合建议的距离。还显示出路面的粗糙度和路面结构的强度（SP）取决于路面的破坏程度。给出了诸如粗糙度，车辙深度和破坏程度之类的路面参数值，因为它们有助于确保立陶宛公路上的舒适或良好的TC，因此不应超过这些值。建议的道路TC模型​​可用于确定公路TC的质量。

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