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Geographic Information Systems (GIS) Projects
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Van Buren Township Tax Parcel Update
Wade Trim updated Van Buren’s digital tax parcels and base map information. Wayne
County converted all of its county-wide paper tax parcel information into a GIS format in
1999. Since then the County has not updated this dataset to reflect changes, including splits,
merges and subdivision entry. Before the project began, Wade Trim conducted a pilot project
to update tax parcels within one Township section. A customized version of ESRI’s ArcGIS Land
Parcel Data Model was used as the template to design and store parcel information. Existing
up-to-date paper quarter-section plat books were scanned and georeferenced. Changes were made
to the existing digital tax parcel information using plat book sheet images as a guide.
Wade Trim updated all 36 of Van Buren Township’s sections. Deliverables included an
ArcGIS geodatabase and digitally-created quarter-section plat book sheets. |
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South Haven City-Wide GIS
Wade Trim provides GIS coordination and services to South Haven. Over the past four years,
Wade Trim has designed and implemented a GIS system for the City, including data creation,
software installation and training, and application development. A key GIS As-Built Archive
application was developed. Wade Trim placed bar-codes on and scanned all of the City’s
system maps and as-builts. Geographic extents were created for each drawing. A GIS application
was developed to allow the City to view and query the as-built extents with its other base
map information.
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Brownstown Township Needs Assessment
Wade Trim completed a Township-wide GIS Needs Assessment and Implementation Plan for the
Charter Township of Brownstown. The Township has developed GIS components through various
departments, and now has many of the components necessary to use GIS applications. However,
a plan was needed to integrate GIS into the Township’s daily processes to generate increased
efficiencies and cost savings. The plan provided a detailed assessment of the Township’s
GIS needs based on each Department’s daily tasks. Needs were organized into information
products that define how GIS will be used, describe the data needed to generate results, and
assess GIS benefits. Brownstown’s staff were interviewed to understand daily functions
and identify data and mapping needs. The plan describes the data conversion effort, user
categories, training needs, software recommendations, and hardware requirements.
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Taylor Utility Network System Mapping
A comprehensive and flexible utility network system mapping project was completed for Taylor.
A detailed GIS database was designed to create an attribute framework for documenting utility
structure information within an ArcGIS SDE Geodatabase. Guided by existing maps, high-accuracy
GPS receivers were used to locate visible water, sanitary sewer and storm water structures.
Utility system mapping (creation of pipe features and data attribution) was completed in GIS
format using existing maps and our knowledge of the City’s utility networks. A thorough Q/C
process was completed. Multiple quarter-section map books were created for each utility.
Data is also accessible via the City’s ArcIMS-based Intranet GIS browser.
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Garden City Sanitary Sewer TV Inspection
Wade Trim developed and maintains a GIS sanitary sewer collection utility network for
Garden City. The system was mapped using GPS technology to locate manholes and existing
system maps were used to create pipe connectivity and document structure attributes. The
City conducts televised inspections on their sanitary sewer system and documents tap
locations and problem areas. Wade Trim created a custom ArcMap application for managing
inspection activities and mapping tap and problem locations. Information is entered into
database tables and mapped to corresponding sewer pipe locations using linear referencing
functionality in ArcMap. Custom reports generated by the software are a convenient way
for Garden City to track and manage their activities.
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Southfield Utility GPS Data Collection
Wade Trim, in a joint venture, helped develop a GIS for Southfield. Wade Trim’s involvement
included using GPS technology to locate water, sanitary sewer and storm water features
(manholes, catch basins, gate valves, and hydrants) throughout areas of the City. Real-Time
Kinematic (RTK) GPS was used to locate features with an accuracy range of one centimeter.
Approximately 30,000 structures were located with this high accuracy approach to data collection.
Each structure was opened and visually inspected to note its general condition and assigned
a number to be referenced within the GIS. An Oracle database stores all field investigation
and inspection data.
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