Motion trails of a person or car speeding

Does anyone know how to create a motion trails of a person running high speed like what you see in movies like “The Flash” running ? Any tips ? I saw tutorial around using “spline” but does not give this effect visually … like what you see for a super person like the flash …

The simplest method is with Motion Blur.

If you want the person to be more visible, render the scene 2 times.
Once with extreme motion blur and once with normal motion blur and then you pack the whole thing together in the compositor.


Thanks so much for the guidance to solve this. Truly appreciate it.