提出道路交通复杂度分级的思路，对道路线形进行复杂度分级研究，并通过第二任务法测试驾驶员工作负荷的方式进行试验验证。
The paper propose the traffic complexity rating ideas, and research complexity rating for road alignment, and verify it through the second task method testing driver workload.
面对复杂的道路交通环境，承运人需要有一个良好的素质，既应该是驾驶员，又应该是熟练掌握危险化学品知识的技术员。
Faced with a complex traffic environment, the carrier needs to have a good quality, both should be the driver, but also should be familiar with the technical knowledge of hazardous chemicals.
在系统中，模拟了各种道路、天气及复杂的交通状况，且专门设置了危险场景以训练驾驶员对于危险情况的处理。
This system can simulate many kinds of roads, weather and the complicated traffic situation. In order to train the novice driver to deal with dangerous situation, a danger scene is set in the system.
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