these reactors will proberly never be used to transport humans they mit gamma ray if u know u phyiscs u need some serious protection to stop them . Any plane to carry human would be too expensive and heavy to do anything . Any car will be too big and would need maglev to be practicle since it uses super heat air as trust
of course the gamma rays will have some effect on our bodies, but its not as bad as you think, sure tell that to Bruce Banner