When a driver witnesses a traffic accident with victims, they have the **obligation to stop and provide assistance**, as long as their help is necessary and does not endanger their own safety. This is because failing to help the victims when it is possible to do so constitutes a crime known as **failure to render aid**, which can have serious legal consequences, such as imprisonment.

However, if upon arriving at the scene of the accident the authorities or emergency services are already present, and no further help is needed, the driver can continue on their way to avoid obstructing the accident area. This is important to prevent hindering rescue efforts and to maintain traffic safety.

In summary, the obligation to stop and help depends on the **need for collaboration** at the time of the accident. If it is clearly not necessary, the driver is not obliged to stop.