I can't moving the turtle - gis

Question

I'm just starting in netlogo to create an agent-based model. I've got 2 shapefiles, and I want to make my turtle move on my network map. For now I have only can managed to load the shapefiles in my model. Could someone give me an idea how to move the turtle on my network map?
Here is my code so far:
extensions [gis]
breed [cars car]
turtles-own [destination]
globals [
states-dataset
car-blue]
to custom-clear
reset-ticks
clear-turtles
clear-patches
clear-drawing
clear-all-plots
end
to setup
clear-all
custom-clear
ask patches [set pcolor green - 3]
set states-dataset gis:load-dataset "C:/Users/ADMIN/Documents/QGIS/Export Netlogo/Format .shp/state.shp"
gis:set-world-envelope gis:envelope-of states-dataset
gis:set-drawing-color yellow
gis:draw states-dataset 1
set route-car-blue gis:load-dataset "C:/Users/ADMIN/Desktop/routefiles/Shapefile/car/route-car-blue.shp"
gis:set-drawing-color blue
gis:draw angkot-permatabiru 1.5
foreach gis:feature-list-of route-car-blue
[car-pb -> let location gis:location-of gis:centroid-of car-pb
create-turtles 5 [
set xcor item 0 location
set ycor item 1 location
set shape "car"
set size 1
]]
end
to go
ask turtles [
let new-location one-of [link-neighbors] of destination
move-to new-location
set destination new-location]
tick
end
Does anybody know to fix my code? I want to make my turtle move based on my network map.

Answer 1

The problem is probably in the circularity of your destination and new-location. You define new-location as being a link-neighbor of your destination, but since you don't have a destination yet, this new-location is set to nobody. You then set your destination to be your new-location, which also sets destination to nobody, ending up in a circle where no movement is happening.
The fix for this would be to define a destination for each turtle during setup