Would you help an accident victim?

I would probably call an ambulance, as I wouldn't want to move someone who has severe trauma as they may end up with more severe trauma by being moved.

I would call an ambulance and then stay with them until such time as it arrived. If they are concious you can talk to them to keep them concious and find out if they remember what happened. You can apply basic first aid to stop any bleeding and pass on any vital information to the paramedics. It would be wrong to move them or take them to hospital in case you caused further injury/trauma or increased the blood loss. Having been in this situation once, I stayed with the casualties until the ambulance arrived as you can re assure them and comfort them, even if you can't physically do anything to help them.

If you don't know how to save the wounded basically, you have to call ambulance, ortherwise you may face from lawsuit from relative of the wounded or death.If there are many cars on the road, you are afraid that it is dangerous for car will drive over the wounded, you put red yellow alarm sign on the road and let coming cars drive round.

Frankly, you said a victim lying in a pool of blood, you must find his artery and block up bleed, if he loses too much blood, anyone or god can't help him.

Thanks for your question about the accident.

I would call 911 while I am pulling over and would then go to the injured person to do what I could. I do know better than to move him/her unless it's absolutely necessary for safety but that doesn't mean that I can't make an attempt to stop/slow down bleeding and give comfort to the injured person.