The following is quoted from an e-mail to the All_Aboard list by L.H. [nawdry@gmail.com]

Susan Pantell, a research associate with the Light Rail Now Project, has just completed an analysis of worldwide terrorist incidents in transportation spanning the past 40 years (1967-2007). Here's a quick breakdown of the percentage of total incidents by mode (rounded to 1 decimal):

Private Motor Vehicles 73.7%
Buses and Stations/Stops 9.5%
Aircraft and Air Facilities 8.6%
Rail Transit Trains 3.6%
Intercity Rail Trains 3.0%
Boats, Ships, and Maritime 0.9%
Other Transport Vehicles or Facilities 0.6%
   more »