Queen Anne’s
County, Maryland – has contracted
with AXIS to provide geospatial solutions for both E911
and Planning & Zoning Departments. For E911, AXIS
is providing 1” = 200’ geocoded planimetric
mapping, DTMs, 1 meter topography and true color –
high resolution digital orthoimagery. AXIS is linking
together map objects with the telephone database information
which allows 911 dispatchers to instantly locate the
location of a distress call anywhere in the county.
When a 911 call is made in Queen Anne’s
County, a computer monitor will automatically display
a detailed map showing the dwelling or structure from
which the call has been made. In addition to the dwelling,
the dispatcher will see …
the physical address of the dwelling
driveways leading to the location
fencelines or other hazards preventing emergency
access to the location
sidewalks indicating other points of access to the
location
nearest fire hydrants
swimming pools, lakes and ponds for sources of
water
When a 911 call is made from a cellular phone in Queen
Anne’s County, the computer monitor will display
the same detailed map described above with the geographic
location of the cell call displayed as an icon. This
information could be quite helpful in the case of a
deer hunter who has fallen out of a tree stand, in the
middle of hundreds of acres of woodlands, and has called
911 on their cell. Dispatchers will now be able to precisely
locate the caller and better understand, most importantly,
how to get to them quickly. This scenario will involve
off-road travel and knowing where the nearest trails,
paths, farm field lanes, creeks, etc. are located can
make a ‘life-or-death’ difference in the
response time.
In addition to countywide E911 mapping, AXIS is providing
1” = 50’ planimetric mapping, DTMs, 1’
topography and color digital orthoimagery of Queen Anne’s
County’s “high-growth” areas which
encompass approximately 40,000 acres. 1” = 50’
planimetrics, topography and color digital orthoimagery
will be available for the entire Kent Island/Stevensville
area as well as Grasonville, Queenstown and Centreville.
AXIS flew 700 frames of “foliage-free”,
color aerial photography which incorporated Airborne
GPS and over 250 ground-based GPS panels. Remarkably
high residuals were achieved using Softcopy Aerotriangulation
which resulted in absolute accuracies within tenths
of a foot in X, Y and Z. From this controlled photography,
AXIS will provide the County with vector map data at
an engineering scale of 1” = 50’ with 1’
Topography produced from DTMs (Digital Terrain Models
for TIN generation). 40,000 urban and suburban acres
of the county will have mapping which accurately depicts
top and bottoms of curbs, culverts, manholes, catch
basins, all above ground utilities, and just about all
other features visible in this very high resolution
photography. Accompanying the 50 scale vector map data
will be true color, high resolution digital orthoimagery
in TIFF and MrSIDS format. All vector data will be delivered
in ArcGIS and AutoCad formats.
1500 Frames, 3 different Neg Scales of Color Digital
Aerial Photography with Airborne GPS
GPS Survey of 350 Aerial Panels
High Resolution Film Scanning @ 14 Microns
Softcopy Aerotriangulation of 1500 frames
Seamless Color Digital Orthophotography (1600 tiles)
Softcopy collection of 50, 100 scale & 200
scale planimetrics
Softcopy DTM collection for 1’ & 5’
Contours
Address Matching and Geocoding of all addressable
structures
Address ranging and attribution of all private
and public roads
