In Ethiopia one out of seven people has a disability. In 2018 from total population around 16 million were living with a disability. Disability probably caused by road traffic accidents. This study will also show that road traffic accidents are a cause of disability. Qualitative and quantitative data, growth, inflation and death rate, life expectancy used as input to define the number of serious road traffic injuries, total cost and the number of disabled person due to road traffic serious injuries. In the past fifty-one years from 1967-2018; the number of disabilities due to serious road traffic injuries were 73,433. It suggests that from 200 disabled people in Ethiopia in the 2018, one of them was disabled due to a road traffic accident. Based on the death rate in the past fifty-one years the study indicates that around 2581 peoples were died. So, in the 2018 fiscal year in Ethiopia it was expected that around 70,852 people were living with disability due to road traffic accidents. The dependency ratio in Ethiopia was 1:5. Due to disabilities caused by road traffic accidents more than 440,598 personnel were economically affected in the past fifty-one years.

Keywords: Death Rate; Disability; Growth Rate; Inflation Rate; Serious Injuries