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In order to study the head crash conditions of two-wheeler cyclist in traffic accident, this paper verified the car-to-two-wheeler crash model by accident reconstruction, and analyzed the differences of head impact area, speed and angle on sedan and SUV models, proposed the evaluation suggestions in combination with the existing pedestrian protection evaluation requirements. The results show that the head crash speed of the cyclist is not different from that of pedestrians. For the vehicle with Bonnet Leading Edge (BLE) height bellow 850 mm, it is recommended to expand the Wrap Around Distance (WAD) of head crash area from 2 100 to 2 300 mm, and the collision angle is 45°. For vehicles with BLE height higher than 850 mm, there is no need to expand the area.
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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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