Vehicle Type or specific Single Vehicle ID - Regarding the Single Vehicle ID the user can select from the available IDs (for example, only buses IDs if they have already selected buses or a specific one if they have downloaded the dataset.
Trajectories OR Speeds
2a. Trajectory - Progression from 0 to maximum time
2b. Speeds - Color based on speed
Time range [X,Y] and Speed Range [X,Y] - User can select the X and Y which is in the duration of the dataset
Additional comments:
Hovering feature only for single vehicle ID or when there is a trajectory that looks like an outlier (not in proximity with other ones).
Remove menu Color
Remove bar from Vehicle IDs (no sense to select vehicles from 24 until 542)
The visualisation of speed is better through a heatmap, which would save some technical challenges of plotting all the trajectories colour-coded by speed.
The heat map can have a fixed bin size, but should have a time window (input #3 in Manos list).
Remove the fixed time range submenu -it's misleading.
Input by the User
Additional comments: