Research on the Safety Audit Methods for Two-Lane Highway Based on HRV

Abstract

In order to explore stable route safety evaluation indicators, this study discusses the relationship between the heart rate variability (HRV) and other factors, such as design speed, operating speed, acceleration rate, and velocity gradient through a lot of experiments. The results show that operating speed coordination and velocity gradient (Gv) outperform others as road safety indicators. Speed coordination evaluation criteria:|ΔV85|≤10 km/h, good coordination; 10 km/h≤|ΔV85|≤ 20 km/h, general coordination, route indicators of adjacent sections should be adjusted, so that the speed difference is not more than 10 km/h;|ΔV85|≥20 km/h, poor speed coordination, it needs to readjust the design of the adjacent sections. Speed gradient evaluation criteria:Gv≤0.10, good road safety;0.10≤Gv<0.15, common road safety;Gv>0.15, poor road safety and the adjacent sections need to readjust. The conclusions provide the theoretical reference for highway safety evaluation.

The Effects of Guided Imagery on Heart Rate Variability in Simulated Spaceflight Emergency Tasks Performers

“…Finally, the software generated the HRV results in excel format. The HRV processing software is widely used among Chinese researchers and its reliability and validity have been documented [ 23 – 25 ].…”

Threshold Research on Highway Length under Typical Landscape Patterns Based on Drivers’ Physiological Performance

“…It is sensitive to human's physiological performance and can be used to measure the physical workload. HRV is measured by the variation in the time interval between heartbeats [30]. It will decrease when individuals experience heavy mental stress or physical fatigue [31].…”

Safety Assessment of Adjacent Roads Sections via Maximum Entropy Driver's Perception Field

“…Approaches to reducing accidents, due to technical means of organizing the traffic, have practically exhausted themselves [1]. At the same time, existing approaches can be improved and supplemented, taking into consideration the human factor in assessing their safety [2]. The movement of the driver is carried out in the road environment, which includes various elements of engineering and technical support [3].…”

“…A similar approach was considered in [2], where a speed that correlates well with the driver's heart rate variability is selected as an indicator of the driving safety. An assessment of the conditions is proposed: good consistency, which does not require reconstruction of the road sections; average consistency requiring minor adjustments to conditions; poor consistency with poor road safety, requiring the road section reconstruction.…”