Try a web search using the words animated route maps. .
There is a host of information and different methods.
I use an app that produces about 500 frames then combines them into an avi file. I thing the name is Routegen but could be corrected. Not near my PC for a week or so, so cannot verify name.
Rgds
Win 7 Home SP 1, PD 13
Processor i5-4460 CPU @ 3.20GHz, 3201 Mhz, 4 Core(s), (RAM) 8.00 GB, Sys Drive 120 gig SSD, Data Drive 1 Terrabyte, Nvidia GeForce GTX 750Ii , Portable USB3 2 Terrabyte