Here is a picture of a 'Speed Taxi' out of Nanyuki. As you can see, four people have to sit in a seat that is only big enough for three people. Each trip on public transportation in Kenya is white-knuckled ride.
The volunteer that I replaced in Nanyuki told me about a horrific accident that he had witnessed. He was travelling in a speed taxi in western Kenya when a truck backed out in front of them. The driver had no choice but to swerve off the road and ended up plowing through group of people waiting for a bus. The people who were standing were able to run out of the way, however the people who were sitting on their luggage were unable to get out of the way.
He went on to say that people were bouncing off of the windshield, but the aftermath was even worse as a panic stricken crowd moved in and began to just grab the injured and run. He said it was sickening to see one person grab an injured person's arm and run one way, while another person was pulling on the injured person's leg in another direction.