Netlogo programming question on traffic simulation

Question

i am working on traffic simulation using Netlogo for my post graduate individual project. when the turtles move forward we can specify the number of units it can move eg: fd 1 . which would mean the turtle moves forward by 1. what is this unit 1. is it equal to 1 patch or equal to the size of the turtle?

thanks

Answer 1

Each step is the same size as the patches.

Answer 2

As Luis said, each step is the size of one patch, but remember that steps are not restricted to integers, eg. fd 0.7 is a valid command and will move a turtle forward seven tenths of the size of a patch.

Answer 3

patch represents roadway(if you mean so,in a traffic simulation model)!!!as you scales your patch in your model,e.g. 1 patch=25 m....etc!!