Overview
Low-volume roads are essentially those roads that are used in rural areas and do not have high design speeds or high volumes of traffic. By definition low-volume roads have an average daily traffic (ADT) of less than 400 vehicles per day, and usually have design speeds of less than 50 mph. Low-volume roads are used for farm-to-market travel, access roads, logging operations and for access to rural communities.
This guide will help engineers, and planners to design efficient and safe low-volume roads. There are various aspects of low-volume roads that differ from traditional or high volume roadways. Some of those differences are roadway cross sections, roadway surfacing, drainage appurtenances, and low-water crossings, among others. This course will focus on those aforementioned aspects of low-volume road design.
After reading this 8 hour course the student will have valuable information that can be used to effectively design, and construct low-volume roads.
The course materials are based solely on the materials “Low-Volume Roads Engineering” as published on the website of the Research and Innovative Technology Administration of the United States Department of Transportation. A multiple-choice quiz is included at the end, which is designed to enhance the understanding of course materials.
The student must take a multiple-choice quiz consisting of forty (40) questions at the end of the course to earn PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- How low-volume roads are defined
- The various roadbed surfacing materials
- How to determine the minimum width for streamside management zones
- The best time to implement erosion control measures
- The various design flow analysis methods to determine Stormwater runoff
- How to design culverts for low-volume roads
- Erosion control measures for low-volume roads
- Measures to stabilize gullies
- Slope stabilization and stability of cuts and fills
- The design of fords and low-water crossings
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
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