incremental rates

Combined with the medical,psychological and physiological theory,the result of experiment analysis indicates that the fluctuating rate of heart rate is linear related to the speed that exceeds 100 km·h-1 in free flow conditions on straight sections.

h-1时,心率增长率与车速呈线性增长关系;非自由流条件下超车等驾驶行为对驾驶心理影响显著,心率平均增长率较自由流条件下高。