TRAFFIX for Windows places all data (network information, traffic volumes, paths, routes, parameters, titles, etc.) in a single TFX database, which can become quite large. Therefore, a data compression feature is used to reduce the amount of disk storage space required. There are three data compression modes available for selection from the File menu. Once selected, the compression mode stays in effect until a new selection is made.
With no database compression, the files open and close quickly, but the data files are very large, requiring substantial disk space.
This compression mode is a reasonable compromise between the amount of data compression and the speed at which the databases can be opened and closed.
With maximum database compression, the files are significantly smaller, but the time to open and close the databases is much longer, due to the decompression/compression process.
When the program is uncompressing the database, a circle icon is displayed which is progressively filled in as the process continues. When fully filled in, the particular uncompression process is complete. During compression the circle starts out fully filled in and is progressively cleared.