Slow down a particle system on a path?

Hey there I have particles following a path.

I want them to follow the path at a constant speed until they are about 90% along the path, and then I want their speed along the path to slow down to a stop at the end of the path.

Is there a way to do that?

I tried this How to slow a particle system down? 2.8 - #7 by SterlingRoth but it didn’t seem to work.

Thanks in advance.

http://blender-3d.288302.n8.nabble.com/How-to-Animate-Particles-Along-a-Curve-td267.html

http://blender-3d.288302.n8.nabble.com/Particles-Follow-A-Path-tp26.html

Thanks for those, I had to add a bit of damping to the Particle system to make sure it didn’t show around extreme corners of the pipe. But thanks again.