I-5 and Otto Drive Proposed Interchange Photosimulations City of Stockton, Stockton, California POITRA Visual provided photo-realistic simulations for the I-5 North Stockton Corridor, which studied the I-5 Corridor through Stockton, California to make capacity improvements. The project resulted in highway widenings throughout the I-5 corridor, several interchange redesigns, and two new interchanges. One of these new interchanges was located at Otto Drive. Two alternatives for the interchange were explored: an alternative that featured an above-grade profile for I-5, and an alternative that featured an at-grade profile for I-5 with a depressed profile for Otto drive. Photo-simulation was the medium chosen as the best way to accurately communicate the different impacts of each proposed design to project team members and to the public.

POITRA Visual also produced West and East ground view photosimulations of Otto Drive depicting both alternatives.

1. Aerial Photosimulation of Proposed Interchange: Above-grade I-5 profile alternative with Otto Drive remaining at its existing grade (with open median and barrier). View looking West along Otto Drive.

Photosimulations 3 2 1 E Mouse-over images above to toggle between the existing photo and the photosimulations.

POITRA constructed simple 3D models of the proposed interchange configurations, which were used to assist in determining the correct perspective for the alternative overpass structures and the roadway surfaces for Otto Drive. The differences between the alternative I-5 and Otto Drive profiles were difficult to discern from an aerial view, so extra attention was needed to ensure that the alternatives were understandable. The 3D models were camera matched to an aerial photograph provided by the Engineer. POITRA used traditional digital painting techniques to remove several residences and then add the overpass, interchange ramps, soundwalls, proposed laneage, sidewalks, medians, and landscaping. The 3D model helped guide the accurate location of each of these elements. The previous bridge and roadway design experience of the POITRA Visual principals played a key role in accurately interpreting the Engineer's design plans. The final aerial simulation images were used as meeting materials for the City of Stockton's public involvement process.

POITRA constructed simplified 3D models of the proposed interchange configurations to be used as guides for the photosimulations.

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