Show a moving marker on the map

Question

I am trying to make a marker move(not disappear and appear again) on the map as a vehicle moves on the road.

I have two values of latLng and I want

Answer 1

Why not keep the existing Marker/ MarkerImage and call setPosition() to move it, either on a timer or as the position changes?

Deleting it & recreating it is what causes it to flash/ flicker and eventually crash. If you keep the same instance but just move it, you should do much better.

See: Marker.setPosition()

https://developers.google.com/maps/documentation/javascript/reference#Marker