Thank you, the smooth animation was only possible thanks to the DeckGL framework. In the past I tried using only MapBox, which resulted in laggy animations. I do enjoy seeing the city "pulsing" with the day/night cycle.
I think a good solution for this problem would be to discard all routes where cars take more than twice the expected time. This would result in loosing some legitimate trips (could be stuck in traffic), but by adjusting the threshold this could be alleviated.
The direct quote from the complaint (found here on page 5: https://cdn.arstechnica.net/wp-content/uploads/2018/07/show_...) would be:
Meanwhile, beginning in the
mid-1980s, Exxon and other major oil and gas companies,
including Mobil and Shell, took actions to protect their own
business assets from the impacts of climate change, including
raising the decks of offshore platforms, protecting pipelines
from coastal erosion, and designing helipads, pipelines, and
roads in the warming Arctic)