If you suffered personal injuries in a truck accident, follow the instructions of the responding police officers about where to move your vehicle.  If you can do so safely, take photos or videos of where your vehicle and each involved vehicle came to rest after the crash.   After an accident, you may be in shock, and it is important to remember that walking around on a road can be very dangerous.  You have to balance your desire to document the scene with your own personal safety.  Never walk into traffic to get photos unless you are absolutely sure it is safe to do so.