Because GPS has error.
no, its not true...
appear lines in map and not follow the roads
in google maps when i send coordinates of many points, the trace a line on routes.
here no, he put a straight lines.
Traccar is not a navigation app. It displays data reported by your device.
ok ok,
My question is... this is not possible? its not an error configuration?
Like Anton said, it depends on the points/accuracy of the device (obviously if your device is sending data all the time, then it'll be a straighter/more accurate line otherwise it's just plotting between wider points. But there is a way, take a look at this: https://developers.google.com/maps/documentation/roads/snap
Why the route line not follow the roads?