I-5 and Otto Drive East Photosimulations CalTrans, 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. The project added a new interchange at Otto Drive which would result in significant modifications to the roadway. Two different alternatives were examined: 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 the public.

An aerial view photosimulation of the Otto Drive Interchange depicting both alternatives was also produced by POITRA Visual.

1. Photosimulation of Proposed Roadway Improvements: Above-grade I-5 profile alternative with Otto Drive remaining at its existing grade. View looking East on Otto Drive.

Photosimulations 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 models were camera matched to an existing photograph provided by the Engineer. POITRA used traditional digital painting techniques to add the overpass, soundwalls, interchange ramps, proposed laneage, sidewalks, medians, and retaining walls. 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 simulation images were used as meeting materials for the City of Stockton's public involvement process. « BACK

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