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616.16 Typical Applications (MUTCD Chapter 6P): Difference between revisions

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[[Category:616 Temporary Traffic Control|616.08]]
[[Category:616 Temporary Traffic Control|616.16]]

Revision as of 05:17, 10 November 2025

616.16.1 Typical Applications (MUTCD Section 6P.01)

Support. EPG 616.14 contains discussions of typical TTC activities. EPG 616.1.2 contains discussions on development of TTC plans for the various activities. This article 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 TTC zone for one street and a far-side TTC zone for the other street. These treatments are found in two different typical applications in the MUTCD, while a third typical application shows how to handle pedestrian crosswalk closures.

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 MUTCD typical applications can generally be regarded as Guidance.

Option. TTC plans may deviate from the typical applications described in this article 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 EPG 616 provide information for the development of TTC plans.

616.16.2 Typical Applications for Contract Projects

Guidance. For contract projects, the typical applications in Chapter 6P of the MUTCD should be the basis for preparing TTC plans. The MUTCD typical applications themselves are not provided in the EPG, but are included in the EPG by reference.

Support. Table 6P-1 of the MUTCD is an index of the 54 typical applications. In the printed version of the MUTCD, the typical applications are shown on the right-hand page with notes on the facing page to the left. In the electronic version, the notes are shown on the page preceding the figure. The legend for the symbols used in the typical applications is provided in Table 6P-2 of the MUTCD. In many of the typical applications, sign spacings and other dimensions are indicated by letters using the criteria provided in Table 616.2.4. The formulas for determining taper lengths are provided in Table 616.2.8.2.

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

616.16.3 Typical Applications for MoDOT Internal Use

If you have questions about a Typical Application, please email WZTAQuestions@modot.mo.gov

Support. MoDOT has developed the following typical applications are intended for the use of MoDOT employees. Before each work shift, all employees are required to participate in a pre-shift safety briefing. During the briefing, the applicable typical applications should be printed out and then discussed to know the procedures to follow for the day’s work. This should include the risk-based assessment (RBA). The typical applications shown in the EPG are considered current.

[+/-] Emergency Traffic Control
Emergency Traffic Control Description ETC Number Effective Date
*Imminent Danger of a Human* on Roadway or Shoulder ETC-1 7/12/2024
*Unsafe Condition* on Roadway or Shoulder ETC-2 7/12/2024
[+/-] Work Beyond the Shoulder
[+/-] Mobile
Typical Application Description TA Number Figure Number Effective Date
Mobile Operation Work Beyond the Shoulder TA-1M 616.8.1M 9-15-23
[+/-] Short Duration
Typical Application Description TA Number Figure Number Effective Date
Short Duration Work Beyond the Shoulder TA-1SD 616.8.1SD 9-15-23
[+/-] Stationary
Typical Application Description TA Number Figure Number Effective Date
Stationary Work Beyond the Shoulder TA-1S 616.8.1S 9-15-23
[+/-] Work on the Shoulder
[+/-] Mobile
Typical Application Description TA Number Figure Number Effective Date
Mobile Operation on a Shoulder TA-4M 616.8.4M 9-15-23
[+/-] Short Duration
Typical Application Description TA Number Figure Number Effective Date
Short Duration Work on a Shoulder TA-4SD 616.8.4SD 9-15-23
[+/-] Shoulder Closure
Typical Application Description TA Number Figure Number Effective Date
Long-Term Shoulder Closure TA-5A 616.8.5A 9-15-23
Long-Term Shoulder Closure with Temporary Traffic Barrier TA-5B 616.8.5B 9-15-23
Shoulder Work with Minor Encroachment TA-6A 616.8.6A 9-15-23
Shoulder Work with Minor Encroachment with Temporary Traffic Barrier TA-6B 616.8.6B 9-15-23
[+/-] Stationary
Typical Application Description TA Number Figure Number Effective Date
Stationary Shoulder Work TA-3S 616.8.3S 9-15-23
[+/-] Work Within the Traveled Way of a Two-Lane Highway
[+/-] Mobile
Typical Application Description TA Number Figure Number Effective Date
Mobile Operation on a Two-Lane Highway TA-17M 616.8.17M 9-15-23
Striping Operations on a Two-Lane Highway TA-17STRIPE 616.8.17STRIPE 2-1-24
[+/-] Road Closure
Typical Application Description TA Number Figure Number Effective Date
Road Closure TA-8A 616.8.8A 9-15-23
Road Closure with Barrier TA-8B 616.8.8B 9-15-23
Road Closed Beyond Junction Detour TA-9 616.8.9 9-15-23
[+/-] Short Duration
Typical Application Description TA Number Figure Number Effective Date
Short Duration Lane Closure on a Two-Lane Highway using Flaggers TA-10SD 616.8.10SD 9-15-23
Short Duration Lane Closure on a Two-Lane Highway with Less than 400 AADT TA-10SD400AADT 616.6.8.616.8.10SD400AADT 4-1-24
Short Duration Lane Closure on a Two-Lane Highway using TMA Flaggers TA-10SDTMA 616.8.10SDTMA 9-15-23
Short Duration Lane Closure with a Two-Way Left Turn Lane TA-30SDTWLTL 616.6.8.30SDTWLTL 9-15-23
[+/-] Stationary
Typical Application Description TA Number Figure Number Effective Date
Stationary Lane Closure on a Two-Lane Highway using Flaggers TA-10S 616.8.10S 9-15-23
Stationary Lane Closure on a Two-Lane Highway using Automated Flagger Assistance Device (AFADs) TA-10SAFAD 616.8.10SAFAD 9-15-23
Stationary Lane Closure on a Two-Lane Highway using Portable Signal Flagger Devices (PSFDs) TA-10SPSFD 616.8.10SPSFD 9-15-23
Stationary Lane Closure on a Two-Lane Highway using a TMA Flagger TA-10STMA1 616.8.10STMA1 9-15-23
Stationary Lane Closure on a Two-Lane Highway using Multiple TMA Flaggers TA-10STMA2 616.8.10STMA2 9-15-23
Lane Closure on Two-Lane Highways Using Traffic Control Signals TA-12 616.8.12 9-15-23
Stationary Lane Closure with a Two-Way Left Turn Lane TA-30STWLTL 616.8.30STWLTL 9-15-23
[+/-] Support Figures
[+/-] Work Within the Traveled Way at an Intersection and on Sidewalks
[+/-] Short Duration
Typical Application Description TA Number Figure Number Effective Date
Short Duration Center Lane Closure at an Intersection TA-21SD 616.8.21SD 9-15-23
Short Duration Right Lane Closure at an Intersection TA-22SD 616.8.22SD 9-15-23
Short Duration Left Lane Closure at an Intersection TA-23SD 616.8.23SD 9-15-23
[+/-] Stationary
Typical Application Description TA Number Figure Number Effective Date
Stationary Center Lane Closure at an Intersection TA-21S 616.8.21S 9-15-23
Stationary Right Lane Closure at an Intersection TA-22S 616.8.22S 9-15-23
Stationary Left Lane Closure at an Intersection TA-23S 616.8.23S 9-15-23
[+/-] Work Within the Traveled Way of a Multi-Lane Highway
[+/-] Mobile
Typical Application Description TA Number Figure Number Effective Date
Mobile Operation on a Multi-Lane Highway TA-35M 616.8.35M 2-1-24
Pavement Marking Operation on a Multi-Lane Highway TA-35STRIPE 616.8.35STRIPE 2-1-24
[+/-] Short Duration
Typical Application Description TA Number Figure Number Effective Date
Short Duration Lane Closure with a Two-Way Left Turn Lane TA-30SDTWLTL 616.6.8.30SDTWLTL 9-15-23
Short Duration Lane Closure on a Multi-Lane Highway TA-33SD 616.8.33SD 2-1-24
Short Duration Work on Exit Ramps TA-43SD 616.8.43SD 9-15-23
[+/-] Stationary
Typical Application Description TA Number Figure Number Effective Date
Stationary Lane Closure with a Two-Way Left Turn Lane TA-30STWLTL 616.8.30STWLTL 9-15-23
Stationary Lane Closure on a Multi-Lane Highway TA-33S 616.8.33S 9-15-23
Lane Closure with Temporary Traffic Barrier TA-34B 616.8.34B 9-15-23
Stationary Double Lane Closures on Interior Lane on a Multi-Lane Highway TA-37S 616.8.37S 9-15-23
Stationary Closure of Interior Lane on a Multi-Lane Highway TA-38S 616.8.38S 9-15-23
Stationary Work in the Vicinity of an Exit Ramp TA-42S 616.8.42S 9-15-23
Ramp By-Pass TA-43B 616.8.43B 9-15-23
Stationary Work on Ramps TA-43S 616.8.43S 9-15-23
Entrance Ramp Closure TA-44A 616.8.44A 9-15-23
Stationary Work in the Vicinity of an Entrance Ramp TA-44S 616.8.44S 9-15-23
[+/-] Support Figures
[+/-] Work at Railroad Crossing
[+/-] Stationary
Typical Application Description TA Number Figure Number Effective Date
Stationary Work in the Vicinity of a Railroad Grade Crossing TA-46S 616.8.46S 9-15-23
[+/-] Excavations with Steel Plates
[+/-] Stationary
Typical Application Description TA Number Figure Number Effective Date
Excavations with Steel Plate or Backfill on Undivided Highways TA-47A 616.8.47A 9-15-23
Excavations with Steel Plate or Backfill on Divided Highways TA-47B 616.8.47B 9-15-23
Complex Intersection Guidance (MoDOT access only)

616.16.3.1 Legend for Typical Applications

Fig. 616.8.2 Meaning of Symbols on Typical Application Diagrams


616.16.3.2 Examples of Highways

Divided Highway: Highway with physical separation of traffic in the opposite direction.
Median Separation
Median Separation with Guard Cable
Barrier Wall Separation
Undivided Highway: Highway with no physical separation of traffic in the opposite direction.
Undivided Highway
Multi-lane Undivided Highway
Multi-lane with Turning Lane
Multi-lane with Raised Median
Multi-lane with Paved Narrow Median


616.16.3.3 Recommended Advance Warning Sign Minimum Spacing

Table 616.16.3.3, Recommended Advance Warning Sign Minimum Spacing
Speed Limit1, mph Sign Spacing2, ft.
Undivided Highway Divided Highway
up to 35 2003 2003
40 to 45 350 500
50 to 55 500 1000
60 to 70 1000 SA-1000
SB-1500
SC-2640
1 Speed limit is based on posted speed limit.
2 Sign spacing may be adjusted, normally by increasing it, to accommodate field conditions and visibility.
3 For urban low speed, minimum recommended spacing in MUTCD is 100 ft.


616.16.3.4 Recommended Taper Length and Spacing

Table 616.16.3.4, Recommended Taper Length and Spacing
Speed Limit1, mph Taper Length2, ft. Channelizing Spacing 3, ft.
Shoulder4 (T1) Lane5 (T2) Tapers Buffer/Work Areas
up to 35 70 245 356 406
40 to 45 150 540 406 806
50 to 55 185 660 507 807
60 to 70 235 840 607 1207
1 Speed limit is based on posted speed limit.
2 Taper lengths may be adjusted to accommodate crossroads, curves, intersections, ramps or other geometric features.
3 Channelizer spacing may be reduced to discourage traffic encroachment.
4 Based on 10 ft. shoulder width.
5 Based on 12 ft. lane width.
6 Spacing reduced to 1/2 at intersections.
7 Spacing may be reduced to 1/2 at intersections.
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