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Abstract:The Texas City Interchange on Route 3 from Houston to Galveston was the subject of lighting research. The work was sponsored by the Texas Transportation Institute. The intersection was experimentally lighted with several arrangements of overhead luminaires so that many combinations of spacing and mounting heights could be employed. The visual effects of various combinations of lights from two of the approach directions are discussed in this publication. The study considered the potential areas of conflict for a driver when approaching and passing through the intersection from either of two directions, vis., from Galveston or from Texas City. Evaluation of the approaches from Galveston and Texas City were made using the continuous intermediate and minimum spacings of luminaires on 30- to 45-foot mounting. heights in clear, dry weather.
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