Travel Tiles

Hi Richard,  I like the idea of travel tiles.  I have this enabled and note that some tiles have recently been populated on my account.  I use cycle.travel to plan all my long distance routes and some shorter routes but then upload them to my Garmin 830 device.  I prefer to use my Garmin to navigate and keep my phone switched on but don't use the cycle.travel app for guidance.  How does the mapping/software update the travel tile?  Does my phone need to switched on and the cycle.travel app and route need to be running?