This powerpoint presentation begins by providing a brief overview of fire flow (FF) analyses. Determining the
capability of a distribution system to deliver FF is presented first, along with limitations of past approaches to FF analysis, defining needed fire flow (NFF) for broad areas, setting FF goals based on local
considerations, setting a FF goal for each land use category at Madison, Wisconsin, determining FF capacity at Distribution System Nodes with an All-Pipes Model, and Nodal FF Capacity Values were converted to
FF Capacity Contours using modeling software. Recently Improved Methods using
Advanced GIS Techniques are presented:
FF capacity was interpolated for many points between nodes;
rasters were used rather than polygons;
and,
FF goal raster was subtracted from FF capacity raster. Presentation conclusions indicate the following:
community interest is best served by completing a
comprehensive FF analysis;
broad-area FF goals can be established with
ISO / local fire code guidance,
local agencies / water utility coordination, and
individual property FF goals remaining a case-by-case decision; and,
thorough FF capacity evaluation can be achieved by
experienced development and application of an All-Pipes
Model and GIS tools that display the results; a comprehensive FF analysis provides an opportunity for
local agencies and the water utility to collaboratively set FF
policy;
a comprehensive FF analysis provides broad-area capacity
and deficiency maps that are valuable tools for
planning current and future fire fighting methods and equipment,
visualizing and evaluating strategic water system improvements that
effectively and economically increase FF capacity, and grasping the broad-area view of deficiencies and improvement
impacts for prioritizing CIP components. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 3.6 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 38 |
| Published : | 11/01/2008 |
