11th edition of the MUTCD-2020 draft-Item 516

NPA Text

516. In Section 6P.01 (existing Section 6H.01) Typical Applications, FHWA proposes to add eight new Typical Application figures along with notes to accompany them. New Figures 6P–47 through 6P–51 illustrate and describe five different situations involving work impacting bicycle facilities, to supplement proposed new text information in Section 6N.04 (existing Section 6G.05). New Figures 6P–52 through 6P–54 illustrate and describe procedures for work at a roundabout. In addition, FHWA proposes to revise the existing drawings and/or notes for the following existing figures in Chapter 6P (existing Chapter 6H):

Draft MUTCD Content

Section 6P.01 Typical Applications

Support:

Chapter 6N contains discussions of typical TTC activities. Section 6A.02 contains discussions on development of TTC plans for the various activities. This Chapter presents typical applications for a variety of situations commonly encountered. While not every situation is addressed, the information illustrated can generally be adapted to a broad range of conditions. In many instances, an appropriate TTC plan is achieved by combining features from various typical applications. For example, work at an intersection might present a near-side work zone for one street and a far-side work zone for the other street. These treatments are found in two different typical applications, while a third typical application shows how to handle pedestrian crosswalk closures. For convenience in using the typical application diagrams, Tables 6B-1 and 6B-4 are reproduced in this Chapter as Tables 6P-5 and 6P-4, respectively.

In general, the procedures illustrated represent minimum solutions for the situations depicted. Except for the notes (which are clearly classified using headings as being Standard, Guidance, Option, or Support), the information presented in the typical applications can generally be regarded as Guidance.

Option:

TTC plans may deviate from the typical applications described in this Chapter to allow for conditions and requirements of a particular site or jurisdiction.

Other devices may be added to supplement the devices and device spacing may be adjusted to provide additional reaction time or delineation. Fewer devices may be used based on field conditions.

Support:

Figures and tables found throughout Part 6 provide information for the development of TTC plans.

Table 6P-1 is an index of the 46 typical applications. Typical applications are shown on the right-hand page with notes on the facing page to the left. The legend for the symbols used in the typical applications is provided in Table 6P-2. In many of the typical applications, sign spacings and other dimensions are indicated by letters using the criteria provided in Table 6P-3. The formulas for determining taper lengths are provided in Table 6P-4. Table 6P-4 is used for the determination of sign spacing and other dimensions for various area and roadway types.

Most of the typical applications show TTC devices for only one direction.