How should you respond at the scene of an accident involving a T-bone collision?

In the case of a T-bone collision, prioritizing safety is paramount. Blocking traffic is essential to protect both the officers at the scene and any individuals involved in the collision. This action prevents further accidents and ensures that emergency personnel can operate without the risk of additional vehicles entering the scene unexpectedly.

Creating a safe zone around the accident site allows for thorough assessment of the situation and provides space for emergency responders to assist the injured. It's crucial for law enforcement to take immediate control of the traffic around an accident scene to mitigate risks and maintain order.

The other options, while they may have some merit in certain contexts, do not adequately address the immediate safety needs of the personnel and victims at the scene. Positioning a squad car for visibility or using flares and cones can be secondary measures taken after ensuring that traffic is sufficiently controlled to prevent further incidents.