Some very informative extrication information from Fireengineering and Ron Shaw.
NEW AUTO SAFETY TECHNOLOGY, PART 1
NEW AUTO SAFETY TECHNOLOGY, PART 2
Ron Shaw is a lieutenant in the Plymouth (MA) Fire Department. He is the founder of Extrication.Com, which provides motor vehicle rescue/extrication training and online safety information.
Shaw is currently compiling the Extrication.Com Vehicle Extrication: Basic Skills textbook for Jones and Bartlett Publishers.