Vertical Curve Design and Flexible Pavement Analysis for Highway

The scope of work included the following tasks:

• Vertical Curve Design

  • Redrew the roadway layout, identifying PVC, PVI, and PVT stationing and elevations.

  • Developed the parabolic equation for the curve and calculated the lowest point.

  • Determined the minimum curve length for stopping sight distances at 20, 35, and 55 mi/hr and redesigned as needed.

• Bridge Clearance Design

  • Determined clearance for a 100.26-foot bridge over the curved road and schematically illustrated the section per AASHTO guidelines.

• Flexible Pavement Design

  • Designed pavements for a four-lane highway and a two-lane rural road, considering AADT, axle loads, material properties, and drainage conditions.

  • Calculated surface, base, and subbase thicknesses and repeated the design for varying CBR values.

• Drawings

  • Made scaled layouts of the vertical curve, bridge, and pavement cross-sections.

This project enhanced my skills in roadway and pavement design, ensuring precision and compliance with AASHTO standards.