Roadway Predesign
The Roadway Predesign and Review Section oversees the project scoping phase of ADOT's project development process. Information from the scoping phase is used by the Multimodal Planning Division in the priority programming process for inclusion of projects in the Five-Year Transportation Construction Program. Scoping defines consensus of a preferred alternative as well as the major features and cost estimate of a project.
AASHTO Criteria
- 2009 AASHTO Guide
- Horizontal Curve Analyzer HCA 6.1 (zip file)
- Vertical Curve Analyzer VCA 6.0 (zip file)
- Vertical Curve Analysis 2001, AASHTO 2001 Stopping Sight Distance Formula
- Appendix A: Roadway Classification Examples (Templates)
- Appendix B: Bridge Evaluation Request Form (Template)
- Appendix C: AASHTO Report Format Instructions (Template)
- Appendix D: AASHTO Report Example (Template)
- Horizontal Curve Method 2 Program HCA 6.0 (Support for Design Exception Letter)
