Geometry needs simplification. Creation of details, verification of contract drawing data, and CNC programming generation are components requiring excessive time with complicated geometry.

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Five issues to consider in designing economy into the structure are:

• 1. Rotate boxes with the cross slope
• 2. Maintain constant trapezoidal shape
• 3. Maintain constant concrete haunches
• 4. Horizontal station offsets are preferred
• 5. Follow centerline alignment even though a spiral curve

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