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2/7/23, 2:46 PM Chapter 6H - MUTCD 2009 Edition - FHWA <br />https://mutcd.fhwa.dot.gov/htm/2009r1r2/part6/part6h.htm#table6H01 1/51 <br />Back to Current Edition | Back to Part 6 Table of Contents <br />Search 2009 Edition of MUTCD: Go <br />2009 Edition Chapter 6H. Typical Applications <br />Section 6H.01 Typical Applications <br />Support: 01 Chapter 6G contains discussions of typical TTC activities. This Chapter presents typical <br />applications for a variety of situations commonly encountered. While not every situation is addressed, <br />the information illustrated can generally be adapted to a broad range of conditions. In many <br />instances, an appropriate TTC plan is achieved by combining features from various typical <br />applications. For example, work at an intersection might present a near-side work zone for one street <br />and a far-side work zone for the other street. These treatments are found in two different typical <br />applications, while a third typical application shows how to handle pedestrian crosswalk closures. For <br />convenience in using the typical application diagrams, Tables 6C-1 and 6C-4 are reproduced in this <br />Chapter as Tables 6H-3 and 6H-4, respectively. <br />02 Procedures for establishing TTC zones vary with such conditions as road configuration, location of <br />the work, work activity, duration of work, road user volumes, road vehicle mix (buses, trucks, cars, <br />motorcycles, and bicycles), and road user speeds. <br />03 In general, the procedures illustrated represent minimum solutions for the situations depicted. <br />Except for the notes (which are clearly classified using headings as being Standard, Guidance, Option, <br />or Support), the information presented in the typical applications can generally be regarded as <br />Guidance. <br />Option: 04 Other devices may be added to supplement the devices and device spacing may be adjusted to <br />provide additional reaction time or delineation. Fewer devices may be used based on field conditions. <br />Support: 05 Figures and tables found throughout Part 6 provide information for the development of TTC plans. <br />Also, Table 6H-3 is used for the determination of sign spacing and other dimensions for various area <br />and roadway types. <br />06 Table 6H-1 is an index of the 46 typical applications. Typical applications are shown on the right- <br />hand page with notes on the facing page to the left. The legend for the symbols used in the typical <br />applications is provided in Table 6H-2. In many of the typical applications, sign spacings and other <br />dimensions are indicated by letters using the criteria provided in Table 6H-3. The formulas for <br />determining taper lengths are provided in Table 6H-4. <br />Table 6H-1. Index to Typical Applications <br />Typical Application Description Typical Application Number <br />Work Outside of the Shoulder (see Section 6G.06) <br />Work Beyond the Shoulder TA-1 <br />Blasting Zone TA-2 <br />Work on the Shoulder (see Sections 6G.07 and 6G.08) <br />Work on the Shoulders TA-3 <br />Short Duration or Mobile Operation on a Shoulder TA-4 <br />Shoulder Closure on a Freeway TA-5