PREPARED FOR WVAGP SEMINAR Jared D Wilson Instructor of Land Surveying Glenville State College Glenville WV SURVEYING amp GIS What is surveying Surveying is the art and science of locating points on above or below the earths surface ID: 417131
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Slide1
INTEGRATING SURVEYING AND GIS
PREPARED FOR:
WVAGP SEMINAR
Jared D. Wilson
Instructor of Land Surveying
Glenville State College
Glenville, WV Slide2
SURVEYING & GIS
What is surveying?
Surveying is the art and science of locating points on, above, or below the earth’s surface
In essence, surveying is the collection and analysis of geospatial information
What is GIS?
Geographical Information System
A collection of geospatial data and the ability to analyze the data in a detailed manner
As we can see, surveying and GIS are very closely related fields!Slide3
Who Utilizes Surveying and GIS?
Governments
NOAA
FEMA
USGS
Law Enforcement Agencies
Private Industry
Construction
Mapping
Private Law Enforcement
General Public
Again, the two disciplines share common usages.Slide4
Features of Surveying & GIS Analysis
Data collection, entry, editing, validation
Image analysis
Map creation
Data analysis and linkage
Data storageSlide5
The Surveying and GIS Relationship
Characteristics of the Surveyor and GIS Professional
Spatial data analysis and collection
Surveyors play a critical role in the supplying of geospatial data
GIS has roots in land surveying with regards to automated cartography
GIS, aka, LIS deals with land records and associated information
GIS
knowledge
is
included on the Surveying examsSlide6
Surveying Technology
Surveying technology has rapidly evolved within recent years
Computers (Portable)
GPS
Computer Aided Mapping
Robotics
Data Transfer (Cable and Wireless)
This increase in technology has drastically decreased data collection time and increased productivity
Fully automated mapping
Client Data Transfer
On Demand Production and Analysis
Global ClientsSlide7
A Slight Disconnect Within the Professions
What is the underlying factor that puts surveyors and GIS professionals at odds?
Accuracy!
Survey grade accuracy has always been the biggest obstacle within GIS and surveying
The “Boundary”
Surveyors are always aware when boundaries overlap or gap; however, GIS professionals are not usually land surveyors, they are data analysts
GIS, in its infancy, trended more towards a shotgun approach with regards to boundaries, but with its growth, more and more GIS boundaries can better withstand court challengesSlide8
Part of the Solution
Robillard stated it best, “No
matter the amount of precision involved in the data collection process, errors in surveying still
occur”
The accuracy of survey measurements is becoming increasingly better; thus, data pertaining to boundaries needs to be relayed to GIS professionals
Good data in, equals, good data out
Historically, GIS boundaries were digitized from tax maps, which, are a “sketch” of what the property boundary should represent
Surveyors need to understand that they are responsible for preparing accurate boundaries and GIS professionals need to realize that if that data is needed, get it.
It is not public information!Slide9
Another Part of the Solution
Training
Many of the surveyors practicing today do not have formal or informal training on the utilization of GIS technologies and may not fully be aware of the benefits that a GIS system can provide
GIS professionals need to utilize surveyors knowledge concerning data acquisition and potential analysis
Cross-Training
Should GIS professionals and surveyors work in close conjunction with one another, each should undertake cross-training on particular skills and work development of the other
This would provide an element of appreciation on what both can offerSlide10
Data Integration – The Final Frontier
Fully Integrated Data System
Imagine a fully functional automated database that can deliver all project documents, deeds, field notes, and coordinate system transformation
Then take that functionality and translate the data into project location maps
Finally, further translate the project data into cost versus time
GIS and Surveying are very compatible and with proper education, a full integration of surveying and GIS can be accomplished.