I have made 3 4D-KML Collections, including 20070703 Maokung Gondola, 20070716 Maokung Itinerant bus, and 20070727 Muzha line MRT. I found there are two concerns: first, if you run three files at the same time, your system will be suffered from a heavy loading. Second, each file has its own timer, resulting in an uncoordinated performance. I keep this in my mind although 8 months passed by. Eventually I take some time and make it up in the recent days. Continue Reading »