Rio Vista Park: GPS Inventory &

Land ManagementBrian Singer John ElkinsAmy Cogdill Chris Rollins

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Introduction

• Central Texas Geospatial Consulting is working with the City of San Marcos to create an inventory of Rio Vista park features

• Further research will be done to solve the issue of impervious coverage in the park

• Impervious Cover - “concrete or asphalt, they can be roofs or parking lots, but they all have at least one thing in common – water runs off of them, not through them” (Frazer 2005)

• Potential Harm – “Impervious surfaces collect automobile contaminants, phosphates from residential and agricultural fertilizers, and dozens of other pollutants” (Frazer 2005)

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Scope

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Purpose

• The City of San Marcos needs a digital inventory of their parks and green spaces• Construct a user-friendly inventory of

park and green space features

• Provide suggestions to eliminate some of the negative outcomes from the impervious coverage around the park• Helping the ecosystem of the river

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Minimize & Mitigate• Porous Concrete/Asphalt

• Mulch

• Crushed rock

• Transformation of impervious cover

• Vegetation and rainwater collection

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Data

• Most of the data for this assignment will be collected in situ by CTGC, using a Trimble GeoXT GPS unit

• Park boundaries, river boundaries, GPS monuments for reference and the City’s own Land Development Code can all be downloaded from the City’s page

• Central Area Council of Governments, USGS and Ebsco

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Software

• Adobe Photoshop & Illustrator

• Microsoft Excel, PowerPoint and Word

• ArcMAP, Pathfinder, ERDAS Imagine and ArcGIS Online

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Timeline

• Phase I Data Collection• Six Weeks

• Phase II Data Processing and Analysis• Four Weeks

• Phase III Editing, Revision, Document Production• Two Weeks

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Methodology

• Collect initial data from client and other sources

• Compile list of known features

• Collaborate with other City of San Marcos group

• Add feature list to database

• Test collection of single feature class, points, lines, polygons

• Revise database, adding and subtracting features

• Finish feature collection

• Merge our data dictionary with other group

• Begin analysis for the mitigation of impervious cover

• Measure existing impervious cover

• Investigate the spatial attributes of existing IC

• Research different options for mitigating IC

• Propose changes to IC, and model with maps

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Methodology

• Begin post processing of the data with emphasis on making the database as user friendly as possible

• Transfer GPS data into database

• Finally, assemble the following deliverables: amenity geodatabase, map of the park with feature classes, report and visual model of proposed changes to the IC

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Budget

Services/ Salaries Supplies, Equipment, and Overhead

Project Manager ArcGIS subscription: $600

$4500 for 20 days work Trimble GPS rental: $3750

Web Master/ Researcher Workstation rental: $7500

$4300 for 20 days work Office supplies: $500

GIS Technician Insurance: $5000

$4300 for 20 days work Transportation: $1000

Researcher/ Editor

$4300 for 20 days work

Salaries Subtotal: $17,400 Equipment Subtotal: $17,850

Total Budget: $35,2502/25/2015

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Conclusion

• Central Texas Geospatial Consulting will provide the City of San Marcos with:• User friendly model• Visual representation of the parks with

the newly collected data• Provide a visual representation of the

proposed changes to the imperious coverage

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References

Frazer, Lance. "Paving Paradise: The Peril of Impervious Surfaces." Environmental Health Perspective. 11 July

2005. Web. 12 Feb. 2015. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1257665/

B. Corrozi, Martha, Gerald Kauffman, and Kevin Vonck. "Impervious Cover." Guide to Natural Resource Based

Planning. Newark and Lewes, 2005. 18-24. Print.

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