As reported by Popular Science, according to the government of Great Britain which tracks deaths per billion passenger-miles, data from 1991 to 2000 showed the following rates:

• airplane - 0.02
• boat - 0.4
• bus - 0.4
• rail - 0.49
• car - 3.1
• bicycle - 42
• foot - 59
• motorcycle - 106

I'm planning to bike 150 to 200 miles in a few weeks...