Rio Vista Park: GPS
Inventory & Land
Management
Brian Singer
Amy Cogdill
John Elkins
Chris Rollins
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
CTGC
2
2/25/2015
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
CTGC
3
2/25/2015
Task 1: Collect and
Browse Data
• Previous Period – Involved collecting our own data
and going through the client supplied data
• Currently – We are almost finished culling through
gathered data, we are finished going through
COSM’s data, also continuously updating our data
dictionary
• Next Period – Updating the data dictionary should
be finalized very soon, as park visits go up,
updates to what is needed in the geodatabase
slow down
Task 2: Park Inventory
• Previous Period – Created a working feature
database, familiarized ourselves with the GPS
receiver and collected a point, line and polygon to
test the process
• Currently – Park inventory is 75% complete, all
trashcans, park benches, grilles, and charcoal
dump boxes, less rain delays lately as weather is
improving
• Next Period – Finished collecting in 1-2 weeks,
special care will be taken to collect trails and
sidewalks
Task 3: Land
Management
• Previous Period – Digitized the Impervious Cover of the
park which covers about 20% of the park’s area. Also looked
for materials used to mitigate IC and thanks to clients
learned that gravel is laid in a 4” bed and mulch is laid in a
6” bed
• Currently – Creating zones to outline areas of concern
based on the river’s floodway which is defined as an area
where water can be standing as well as move really fast,
also park visits made during heavy rain to see firsthand
where runoff could be problemativ
• Next Period – In the next week our zones will be better
defined and then combined with out digitized IC layer so
that we can focus on improving the park’s IC
Task 4: Post Processing
• Previous Period – Exported a small collection of
Trimble data off unit, into pathfinder, and then
exported into ArcMAP to check for any issues in the
process and we learned that there will be a great deal
of post processing at the end of our project
• Currently – On hold, focusing on IC analysis and
inventory collection, best to save post processing until
inventory is complete
• Next Period – Spend a week transferring data from
the Trimble units to ArcMAP, also finalize the feature
database with the other group
To Conclude
• So far, CTGC has encountered problems such
as bad weather making it difficult to collect
GPS points, also we have had to add to the
required feature class database, and try
different methods in the collection process
• Some things have gone well, we have
successfully collected all the trash cans in the
park and moved them over to ArcMap. In
addition to that we have digitized the park’s
impervious coverage
END