Chapter 5: Application of Advisory Speeds

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Section 1: Overview

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Introduction

A discussion of the following types of advisory speeds is included in this section:

  • curves and turns
  • intersections
  • narrow and one-lane bridges
  • descending grades of six percent or greater
  • dips
  • exit ramps.
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Advisory Speed Sign Posting

The W13-1 ADVISORY SPEED sign may be used in conjunction with any warning sign to indicate the maximum safe speed for passenger cars around a curve or through a hazardous location. It must not be used in conjunction with any sign other than a warning sign, nor shall it be used alone.

The W13-1 sign shall always be mounted on the same post with and immediately below the warning sign to which it applies.

Figure 5-1 shows typical warning and advisory speed signing applications.

Typical height and location of warning and
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Figure 5-1. Typical height and location of warning and advisory speed signs

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