Looks like they are “repaving” some or all of the “roads” on the Synergy Coaster
Sources: https://goo.gl/maps/B6DywFz4Z6YteM3S9 and https://goo.gl/maps/n5UHLDTLMNp6N4B57 and https://goo.gl/maps/mGYkJ5pNsTjxVjkw7 and https://goo.gl/maps/1BRQTo4Jf945tBbw8