The small wave symbol located above your arrival time represents the estimated arrival time for your bus. The image below shows an example of the next three estimated Sahara Express (SX) vehicles at that stop. If you do not see the wave symbol above the time, you are seeing a scheduled bus time.
For example, this is how a scheduled time will be shown on the app. Scheduled times are represented in a darker color and do not have the wave symbol located above them. It is recommended that you check back every 2-3 minutes until an estimated time becomes available.