The National Transportation Library is a Web site of the federal government, and contains an interesting variety of information. More interesting than the site’s official description:
Charged with improving the availability of transportation-related information needed by Federal, state, and local decision-makers, the National Transportation Library’s (NTL) mission is to increase timely access to the information that supports transportation policy, research, operations, and technology transfer activities. The NTL was established in 1998 through the Transportation Equity Act for the 21st Century and serves as a repository of materials from public, academic and private organizations.
You will find databases here of safety-related matters involving all forms of transportation — air, train, truck, etc. You may find exactly the right statistic to make your point in a personal injury trial.