Many factors can result in a traffic accident, and sometimes multiple causes contribute to a single accident. Traffic accident factors include the following:
1. Driver distraction, including fiddling with technical devices, talking on a cellphone, talking with passengers, eating or grooming in the car, dealing with children or pets in the back seat, or attempting to retrieve dropped items.
2. Driver impairment by tiredness, illness, alcohol or other drugs, both legal and illegal.
Mechanical failure, including flat tires or tires blowing out, brake failure, axle failure, steering mechanism failure.
3. Road conditions, including foreign obstacles or substances on the road surface; rain, ice, or snow making the roads slick; road damage including pot holes.
4. Speed exceeding safe conditions, such as the speed for which the road was designed, the road condition, the weather, the speed of surrounding motorists, and so on.
5. Road design and layout. Some roads are notorious for being accident "black spots" for a variety of reasons, including alignment, visibility, surface conditions, road markings, etc.
careless driving mainly accounts for the traffic accident!and the bad traffic condition is also a cause of it !