No and yes. It is not possible to track the position of the GPS every few seconds. Why? The LocationChanged event will 'fire' only after it confirms a satellite fix (even if you set IntervalTime to a few seconds). On the average, most Android devices require at least 20 seconds or more (depending on conditions described in Using the Location Sensor ) to elicit a LocationChanged event.
It is possible to track the device's progress as it changes location. That is sometimes called making a trak or track. The coordinate information can be saved in a List and or a TinyDB as geocoordinates and saved. The coordinates can be later 'played' back as either individual run time Markers ( Store map.features in tinydb - #5 by patricioruiz ) or as a LineString on a Map.
You may also be interested in
How to display Map runtime Markers, calculate distances, determine closest
or App Inventor GPS Trak Basics .
and Remove Runtime Markers from a Map
Regards,
Steve