Sb-factor Program
Disclaimer
These documents and program are Copyright (c) 2003 RWDI Anemos Limited. No warranty is given or implied. You are welcome to distribute them freely in their entirety but they are not for resale. The documents, charts and program must be used in conjunction with a current copy of BS6399-2:1997 and values from the Code shall always take precedence. Reasonable care has been taken to ensure that these documents are free of viruses, however you are advised to make your own checks before installation.
Instructions
Download the zip file and then uncompress or extract the Sb3.exe file and place in an appropriate location on your computer. Create a shortcut on your desktop for easy access (right click on the Sb2.exe file, select "Send to" and then "Desktop as shortcut").
Use the text boxes or sliders to set the correct values for effective height, distance to sea and distance in town. The program will not allow invalid combinations - for example, being one kilometre for the sea but 2km inside town. Also, note that the sliders for distance have a lower limit of 0.1km because of the logarithmic scale). If you want to set 0km, just use the minimum 0.1km setting.
The program gives the value of Sb using the STANDARD method and also the value obtained by the "Hybrid" method described in the Code - which is usually lower.
Download: 
Sb-factor Program (ZIP 170KB)
Build History
2006-12-20 Build 3
This version corrects some screen resolution issues.
2005-02-23 Build 2
This corrects a minor issue with the slider for 'Distance in town' which arose when a very small value (<0.1km) was used. Also, the number entry boxes have been improved with 2 significant digits to allow more accurate use of the sliders.
To use this version, delete the previous version and follow the instructions above.
