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To address the mismatch between urban rail transit construction and ridership efficiency in China, it is crucial to understand and master the influence laws of network ridership and improve efficiency. However, due to a lack of longitudinal data, research on the relationships between socioeconomic factors, network structure, and ridership remains insufficient. This study uses annual panel data from 2012 to 2020, calculates topological characteristics of the urban rail transit station network, and establishes a time fixedeffects model. The goal is to explore the topology of the urban rail transit network and its coupling relationship with urban layout effects on ridership changes, facilitating rational use of transit resources and improving core competitiveness. The results indicate that as the urban rail transit network develops, the complexity of the transportation network structure increases, and the number of interchange hubs rises, playing a crucial role in network connectivity. Changes in the topological variables of the urban rail transit network significantly enhance passenger flow; the densification of network distribution and regionalization of hubs help improve interchange connections and attract more passengers. The degree of coupling coordination significantly affects passenger flow changes; thus, the coupling relationship between population distribution and line layout should be considered according to local conditions in rail line network planning. Finally, this paper proposes relevant policy suggestions for rail transit network construction planning to provide a theoretical basis for urban rail transportation construction policy formulation.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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