In recent years, due to the prohibition of mining of natural sand and gravel, mine management and other reasons, machinemade sand and gravel have become the main source of construction sand. Due to the uneven distribution of mine resources and unreasonable transportation schemes, the contradiction between supply and demand in the sand and gravel market has gradually intensified. This paper takes the price level of machine-made sand and gravel, distribution of mine resources and demand hotspots as comprehensive considerations, identifies key areas such as Beijing-Tianjin-Hebei, Yangtze River Delta, and Pearl River Delta as the research objects. The article analyzes the contradiction between the supply and demand of mechanism sand and gravel in key regions, and builds a cross-regional transportation system based on railway and water transportation, supplemented by road transportation. Finally, relevant policies and measures are proposed in terms of improving supporting facilities, advancing the construction of special railway lines, and dredging waterways.
In order to timely understand the current situation and the practical problems of the development of rural logistics network system construction in China in the new period, and explore the rural logistics development countermeasures of the construction of the network node, the level, number, characteristics and the development regularity of rural logistics network nodes were analyzed. In addition, the classification of rural logistics transport organization mode was divided, through the methods of fieldwork, questionnaire research, document survey. The idea of promoting the development of rural logistics in China was put forward, which provides reference for promoting the construction of rural logistics network system in China.
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