As a climber, I don't think it's comparable. The death rate among notorious soloists (as compared to rate among people who bike in traffic every day) agrees here.
Each bad move on a solo is death. For driving, biking in traffic, it has to be a series of bad circumstances to mean death.
Each bad move on a solo is death. For driving, biking in traffic, it has to be a series of bad circumstances to mean death.