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Suitability Analysis for the Proposed Onion Creek Greenway

Onion Creek Preserve

Travis County, TX

Project Description: Travis County is developing an Onion Greek Greenway that will stretch from the confluence of Onion Creek and the Colorado River 21 miles to the confludence of Onion Greek and Slaughter Creek. This suitability analysis will analyze and select a preferred route for this stretch of the Onion Creek Greenway through Travis County Southeast Metro Park.

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Viewshed

Proposed Trail

Visible

Roads

1 E7 UT RO

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Trail Index

Not Visible

Least Suitable Best Suitable

Onion Creek

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UT

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13

Southeast Metro Park

1 inch = 458 feet

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Jones-Norwood II Cemetery

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Park Boundaries

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0.2 miles

Projection: Lambert_Conformal_Conic NAD_1983_StatePlane_Texas_Central_FIPS_4203_Feet Source: Austin Community College GIS Department, Texas Natural Resources Information System

Map Created by Kyungah Lim for GEOG 2471 on 8/7/2012

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Trail Start

1

Waypoints

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reclassified based on the standardized criteria by scoring 1, 3, or 5 in which 1 is the most preferred and 5 is the least. The three reclassified datasets were then overlaid with equal weight to create the resulting trail suitability index. Based on the trail suitability index, the least cost path from the north side of Travis County Southeast Metro Park, extending southwest along the Creek and ending at Old Bastrop Highway Crossing was identified. The second Process of Trail Suitability Analysis: phase of the analysis created the The first phrase of the suitability analysis scenic viewsheds for this stretch of the began with identifying the spatial Onion Creek Greenway. distribution of the important factors that determine the preffered route (i.e. slope, soil properties, and activity zones). Each of these factors were

Downtown Austin

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Trail End : Old Bastrop Highway Crossing

2012-08-07_Kyungah_Lim_GEOG_2471_Project_02