Horizontal Curve Alignment and Setting Advisory Speeds – PART I

February 5, 2026

February 23, 2026 – 9:30am to 12:30pm EST

PDHs AVAILABLE

3 Professional Development Hours can be granted for this course. No partial credit available. Attendees must attend at least 90% of the webinar to get 3 PDHs.

WHAT THIS IS ABOUT

Horizontal curves are a change in roadway alignment that creates a more demanding environment for the driver, vehicle, and pavement. The challenges associated with safe navigation of horizontal curves compound with the addition of a nighttime driving environment or inclement weather. Recent data analysis shows that 28 percent of all fatal crashes occur on horizontal curves. Furthermore, about three times as many crashes occur on curves as on tangential sections of roadways, and most of these crashes are roadway departures. These statistics make horizontal curves prime sites for safety improvements.

A focus on horizontal curves can prove to be a cost-effective approach to reducing roadway departure crashes. Horizontal alignment signage is low-cost and can be installed at prioritized horizontal curves to address safety issues.

This workshop will cover the importance of curve warning signage, how to select the appropriate curve signage, and how to properly set curve advisory speeds, the basic rules of signage, and other options improving safety on curves. This webinar series will help local agencies meet compliance dates for horizontal curve signage from the MUTCD.

PART I

The Turn sign or the Curve sign, does it matter which one I use?
The Importance of Curve Warning Signage
Signing Countermeasures
Selecting Horizontal Alignment Signage and Setting Curve Advisory Speeds

PART II

Setting Curve Advisory Speeds, can I just guess?
Selecting Horizontal Alignment Signage and Setting Curve Advisory Speeds (Cont.)
Basic Rules of Signage
Other Options for Improving Safety on Curves

WHO SHOULD ATTEND

This workshop is designed for local and state governmental employees who are responsible for the installation and maintenance of traffic signs on local streets.

INSTRUCTOR

Todd Morrison, P.E

Todd Morrison is a Technology Transfer Engineer with the University of Kentucky and a road safety advocate. In addition, for the past sixteen years he has worked for numerous Local Technical Assistance Programs. He has taught over 1000 workshops and trained over 30000 individuals. He retired from the Kentucky Transportation Cabinet after serving in the Divisions of Construction, Maintenance and Traffic. Todd served for two years as Kentucky’s Safety Circuit Rider helping local agencies identify low-cost improvements to reduce crashes. He also served for two years as a Road Safety Subject Matter Expert for the Tribal Technical Assistance Program. Todd is an ATSSA certified Traffic Control Supervisor, Flagging Instructor, and Traffic Control Design Specialist. He is also a Certified Public Manager and NHI certified instructor.

REGISTRATION FEE

This workshop is free for all participants.