Difference between Traction and Tractive Force ?

[BotBuilder]

Difference between "Traction" and "Tractive Force"?

I need to know exactly what the difference is between "Traction" and "Tractive Force". The more specific and detailed the better.

I can find definitions of "Traction" but nothing really on "Tractive Force".

This is specifically in reference to wheels and road surfaces.

Back story. I have someone who insists on using (teaching) that everything related to wheels and surfaces is "Tractive Force" and discounts "traction". That I can't find a definition of "Tractive Force" that helps me has had me wondering about this for years.

Thanks for the help!

 

[moose]

A quick search on google indicated that the term "tractive force" seems to be mostly used in relation to trains...

 

[BotBuilder]

A quick search on google indicated that the term "tractive force" seems to be mostly used in relation to trains...

Then the free dictionary says something like this: Noun 1. driving wheel - a wheel that drives a motor vehicle (transforms torque into a tractive force)

at http://www.thefreedictionary.com/driving+wheel

so I decided to ask the difference between tractive force and traction here.

So I'm wondering, what is the difference between tractive force and traction?

(The more detailed the better)