Addressing the challenges of surging urban logistics demand, low efficiency of road freight, and environmental concerns, this study analyzes typical cases and summarizes three urban rail freight modes: incidental transport, mixed passenger-freight operations, and dedicated freight trains. It identifies key challenges in operational coordination, facility compatibility, demand matching, and safety management. To resolve these, we propose a "peak-valley" spatiotemporal resource allocation mechanism, flexible facility retrofitting, intelligent scheduling with standardized loading units, and an enhanced safety management system. Furthermore, three tailored operational schemes are designed: an off-peak dynamic incidental transport mode for small parcels, a flexible mixed mode for hub-to-hub batch transport, and a nighttime dedicated freight corridor mode for bulk cargo. This research offers theoretical and practical insights for improving logistics efficiency, reducing traffic congestion, and supporting carbon reduction goals.
| 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 |