One of the most typical causes of traffic accidents is driver fatigue. By 2030, traffic-related fatalities are anticipated to rank fifth among all causes of death. Extreme fatigue, such as that experienced by drivers, impairs concentration and decision-making. Driver fatigue-related accidents are more dangerous than other traffic accidents because tired drivers frequently fail to take evasive action before an accident. To prevent accidents, it is important to research the amount of driver fatigue. The pupil diameter values can be used to study driver fatigue. The Tobii Pro Glasses 2 eye tracker was used in this investigation to gather data. The NH-11 portion in Rewari, India, along the Rajasthan/Haryana border, was chosen as the study region. GPS tracking was done simultaneously to gather study area geometry data. At different sections of the road, pupil size and speed in relation to geometric data were evaluated for the purpose of detecting the amount of fatigue. According to a study, the driver is relaxed in the straight section which may contribute to fatigue and more anxious in the curved section. Along the same research tract, GPS position points were simultaneously taken during the day and at night. It was found that the size of the pupils dilated more at night than it did during the day. The reason is because the driver is more anxious at night daytime fatigue being greater than night time.