This course covers the procedures used to perform a roadway route survey. The course includes the reconnaissance, preliminary, and then the final location survey. Topics commonly found in a construction route survey are also covered. The geometric design of roads is then addressed; as well as pertinent design principles of geometric roadway design, used by transportation designers.

Topics: Planning and Preparation for the Proposed Route Performing reconnaissance, preliminary, and final location surveys Establishing preliminary design criteria and proposed road specs Using various existing map sources when establishing road corridor Types of data that are collected during a recon survey Horizontal Curves, Vertical Curves Introduction to the geometric design of roads Establishing curve points Compound and reverse curves, Transition spirals The use of stationing in a roadway route project Elements of a simple curve, formulas/solutions of a simple curve Degree of curve – Arc and Chord definitions and comparisons Layout of a curve; Dealing with terrain restrictions Compound, Reverse, spiral curves Sag and Crest curve types Using high/low points on a vertical curve to establish drainage Basic Roadway Design Features; Classification of roads/highways Intersections and interchanges; Superelevation of curves Stopping, Passing, Intersection sight distances, Design Speeds Perception-Reaction/Maneuver time; Level of Service

Intended Audience: This course is intended for Roadway, Transportation, Civil, Hydraulic and other engineers whose job description may require a general knowledge of roadway geometrics and design procedures. Publication Source: Based on original courseware by Donald W. Parnell, PE (derived from the USACE FM-233 and the Georgia DOT Design Policy Manual)