The SR-91 Corridor Improvement Project (CIP) is a lane(s) addition project that spans approximately 12 miles along SR-91 and portions of I-15 within Orange and Riverside Counties. Two build alternatives with a total of 12 design variations have been analyzed. The potential exists for a four lane widening of SR-91, which would require the acquisition of between 70 and 300 properties. Due to the magnitude of the project acquisitions, a tool was needed to help convey this information. LSA’s GIS staff developed an application to aid the public in understanding not only whether the project would directly affect them but how and why. Using the platform of ArcGIS Explorer, this application integrates engineering data, parcel data, and ownership information, spatially aligns the data on top of an aerial base, and allows the user to query that data. Widgets were designed to allow the user zoom to a specific address, identify individual parcels, determine how their property will be impacted, view the various alternative designs one by one, and determine whether their property will need to be acquired. This Parcel Viewer application was a big success when it was introduced at a public hearing for the SR-91 CIP. It gave the public a very detailed and hands-on approach to learning how they would be affected by this major transportation project occurring in their own backyard.
Client: Riverside County Transportation Commission (RCTC)
Location: Orange County and Riverside County, California
For more information contact:
20 Executive Park, Suite 200
Irvine, CA 92614
949 553-0666 tel
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