The results showed that divers had higher heart rate and subjective driving load, larger pupillary size, slower driving velocity, more scrape and crash when they were driving along narrower road.

• 结果发现，在较窄路况下行驶，司机的心率和主观驾驶负荷较高，瞳孔较大，驾驶速度较慢，蹭车和撞车次数较多。