Using Addresses on MVA Registration Files to QC and Update Addresses for Building Footprints

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Using Addresses on MVA Registration Files to QC
and Update Addresses for Building
Footprints Apollo Teng Carol
Bernard Montgomery County Maryland DTS
GIS March 18, 2008
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Acronyms Terms

• MVA vehicle registrations
• MDP property points
• M-NCPPC GIS master addresses
• MCG DTS GIS bldg_ps
• Northrop Grumman CAD

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61 GIS Data Layers for E-911

• Centerlines 42,314
• Building Footprints 297,790
• Hydrants 30,643
• PS Facilities
• Schools
• Hospitals
• 55 other data layers

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Building Footprints

• Graphic Shapes
• House Numbers (or ranges)
• Hyper Links for Preplans

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MVA Motor Vehicle Registrations - 2007
Martin's Additions 650
North Chevy Chase 402
Oakmont 122
Poolesville 4692
Rockville 59335
Somerset 869
Takoma Park 9959
Washington Grove 667

Total 131,006
Montgomery County 591,352

Grand Total 722,358
Barnesville 269
Brookeville 170
Chevy Chase Section III 591
Chevy Chase Section IV 2317
Chevy Chase Section V 505
Chevy Chase View 684
Chevy Chase Village 1658
Drummond 91
Friendship Heights 2535
Gaithersburg 42392
Garrett Park 732
Glen Echo 196
Kensington 1847
Laytonsville 323


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Accurate Counts of Registered Vehicles are
objective criteria for certain highway related
revenue sharing
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Centerlines Building Footprints
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Centerlines, Address Ranges BLDG
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There is time lag between occupancies of new
homes and MD property DB. No individual premise
addresses are available for these new lots.
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Clines geocoded MVA address points gather along
the street segments these addresses help
populate the building footprints
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MD Property Points provide addresses for single
family homes. Only one MDP address exists for
the 10-unit parcel.
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14 MVA addresses (in the list) should provide
addresses for the 10 units in this multi-unit
development consisting of two buildings
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Whereas there is only one address point in the
MDP Property Points DB, the goecoded MVA address
points provided addresses for all 11 units in
this multi-unit development.
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Whereas M-NCPPCs Master Address DB currently
provides only one address for this multi-unit
development, geocoded MVA address points provided
addresses for all 17 units.
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The next 4 slides, demonstrate in light blue,
each step in addressing buildings that have only
one address. This building is currently
addressed by one represented MDP point.
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Using MVA registrant addresses, in blue, (those
not used are represented as green squares) to
provide the blue outlined building with addresses.
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Dividing one building, represented in blue, into
multiple buildings.
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The finished product, represents a once singular
building with only one address (provided by MDP
points), now divided into multiple buildings with
individual addresses, acquired from the MVA
registrants (points represented in blue).
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QC helped by MVA points

• MVA points are extremely helpful in correcting
  multi-unit buildings by adding singular
  addresses, which are not provided in all cases,
  by MNCPPC master addresses or MDP points.
• They also provide current addresses for recently
  built buildings that do not show up on databases
  like MNCPPC master addresses or MDP point.
• In order to provide the most current premise
  number labels on buildings for MoCo public
  safety, MVA is another key reference layer to
  complete incomplete building addresses.

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FRS needs buildings, addresses preplans
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Q A

• carol.bernard_at_montgomerycountymd.gov
• apollo.teng_at_montgomerycountymd.gov
• http//www.montgomerycountymd.gov