- Course No E – 1407
- PDH Units 6.00
- Course No E – 1407
- PDH Units 6.00
Intended Audience: Civil anf Traffic Engineers
PDH UNITS: 6
The purpose of this course is to encourage you to use this information to evaluate problems and implement appropriate treatments for problem curve locations. These treatments should help reduce roadway departure crashes, injuries, and fatalities. This course summarizes practical information on where, when, or how to apply safety treatments for horizontal curves or winding sections. These treatments are relatively low cost versus geometric design improvements (degree of curve, shoulders, superelevation, curve length, cross-section, etc.). Information for each treatment generally included description, application guidelines, design elements and materials, effectiveness, and cost. Estimates for treatment effectiveness in reducing crashes were included if available. Actual observed effectiveness values of a treatment can vary depending on its location. Some of the traffic control devices or treatments presented in this course may be considered to be “experimental” and not comply with the MUTCD. Basic Treatments – Devices found in the MUTCD
- Centerline markings
- Edge lines
- Horizontal alignment signs
- Advisory Speed Plaque
- One-Direction Large Arrow Sign
- Combination Horizontal Alignment/Advisory Speed Sign
- Curve Speed Sign
- Chevrons
- Delineators
- Larger devices
- Retroreflective and fluorescent sheeting
- Flashing beacons
- Profile thermoplastic markings
- Raised Pavement Markers
- Reflective barrier delineation
- Roadside object delineation
- Dynamic Curve Warning System
- Speed Limit Advisory Marking
- Centerline
- Shoulder
- Roadway
- Paved Shoulder Treatment
- Shoulder drop-off elimination
- Widen shoulder
- Skid-resistive pavement surface
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