While the ability to add stations can be accessed through many interfaces in the system, the "Add Station" interface gives direct access to this functionality. This interface can be opened using the first icon () under the Station tab. Once selected, this interface will appear on the user's screen:

This interface allows users to enter station information manually (textboxes/picklists) or actively (icons/map). The fields will be filled from top to bottom, starting with the "Year" picklist. While a value may appear in this picklist when the user first enters the interface, it can be altered by clicking into the field and selecting another value. Then, the "Type" picklist must be filled.

After a year and type are specified, the user can either select the Route icon () or choose a value in the "County" picklist. If the icon is selected, the user can interactively select a route on the map. If more than one route appears near that location, a box will appear that lists the surrounding routes. The "show" button can be clicked to select a route in this list.

Then, the map will be zoomed to the route, and the County, Route, and Direction fields will display the relevant information. If the user manually enters the route information, the fields will follow this logic:

• An inputted County value enables the first Route # picklist.
• An inputted Route # Type (first "Route" field) enables the second Route # picklist.
• An inputted Route # (second "Route" field) enables the Direction and From Measure fields.
• An inputted Direction and From Measure enables the To Measure field.
• An inputted To Measure enables the Counter Location field.

If the selected route already has counters on it, the system will display the route's counter segments after the County, Route, and Direction fields have values. Generally, the user will add counters for an entire route at once, so this pop-up will not often display when adding a new station.

If the user is actively selecting information in the "Add Stations" interface, they can use these tools to fill out the remaining fields:

Once the Year, Type, County, Route #, Direction, From Measure, and To Measure fields are filled, the Route Inventory table will be populated with entries of Functional Class and Facility Type for the entered station segment. This view-only table allows users to quickly see how the traffic station aligns with other pertinent Road Inventory fields.

The bottom of the interface has two controls: Clear Fields and Next. The "Clear Fields" button allows the user to remove all values in the interface at once. The "Next" button allows the user to add additional counter information on the second page of the "Add Stations" interface.

The fields and tools on this page are described in the table below:

At the bottom of this page, there are two controls: Back and Save Station. The "Back" button allows users to return to the previous page on the "Add Stations" interface. If values have already been entered on the Counter Location screen, they will be preserved when the "Back" button is selected. The "Save Station" button allows users to save the station and all associated information. The location fields, Station #, and Description will be required for all counter types before the "Save Station" button is enabled. Upon saving a station, several validations will be performed. If any of the validations fail, the user will not be able to save the station. These validations are:

• The From Measure must exist on the selected route.
• The To Measure must exist on the selected route.
• The Counter Location must exist within the range of the From and To Measures.
• The From Measure, To Measure, and Counter Location Measure must reside within the same county.
• The Station # must not already be in use within the same county.
• The CCS # must not already be in use.
• Gaps and overlaps detected will be alerted to the user.

If a station was added for only part of a route, the add stations dialog will guide the user to the next section of the route automatically, so the user doesn't have to re-enter this interface and can assign all necessary stations at once. Then, they can go through the above process again for the next section of the route. Once all sections have stations, a pop-up message will confirm that "The end of the route has been reached."