Study on the Influence of Connected Vehicle Fog Warning Systems on Driving Behavior and Safety

Table 2

Experimental steps.

Step	Content
1	Participants fill out personal information and subjective physiological questionnaires.
2	Pretesting is performed using three drivers to locate and solve any problems.
3	Driving Practice. Drivers practice using the driving simulator for 4–5 minutes to enhance their proficiency using the driving simulator and connected vehicle environment.
4	Formal Experiments. When participating in the experiment, the drivers are not disturbed by external factors, and driving information is obtained through HMI prompts and observation. The drivers randomly finish experimental scenarios. To prevent fatigue, drivers are required to take a break for 5–10 min after each scenario, and the driving time does not exceed 25 min for any scenario.
5	End of the Experiment. Participants fill in the subjective questionnaire and receive a financial reward of 200 Chinese Yuan (about 31.68 US dollars).