 This study examined the differences in risk-taking behaviors between various types of transportation in the Bangkok metropolitan region, BMR, including walking, cycling, motorcycles, cars, and buses. It found that those who use vulnerable forms of transportation, such as walking and cycling, are more aware of risky behaviors than those using other modes. Additionally, drivers of all types of vehicles were more likely to engage in risky behavior when they were tired, under the influence of drugs, or exhibiting aggressive tactics. Furthermore, the study showed that age, gender, education level, income level, marital status, driving experience, accident history, and attitudes towards road safety can also affect risk-taking behaviors. Overall, this research suggests that understanding the differentiation of vehicles is essential for reducing risky behavior among road users.