Colored circles on the Parking Status chart correspond to the likelihood of finding an available reserved or unreserved parking space within the lot. From 10 am to 2 am, no permit is required, so the Total Lot Availability is the only item shown. Green means odds are good, yellow means iffy, and red means poor. "Available" and "In-Use" data show real-time occupancy numbers. The sum of "Available" and "In-use" is the total spaces of that type monitored at Vienna.
In the Typical Occupancy chart:
- the thin gray bars show real-time occupancy of unreserved spaces earlier today;
- the orange bar shows current occupancy of unreserved spaces;
- the blue line shows historical average occupancy of unreserved spaces.
Good 
Marginal 
Low
Historical averages for this day of the week
Hourly occupancy for today
Current occupancy
