While doing some data cleaning and analysis of micro-mobility trajectories in Europe cities, we built an internal tool to visualize urban trajectories over time.  We thought this might be useful to others and are in the process of developing a platform for uploading, cleaning, optimizing, and visualizing custom trajectory data.  Further information on this tool will be available shortly.  In the meantime, take a look through our demo platform:

 

https://platial.science/micromobility/