Difference between revisions of "616.8 Typical Applications (MUTCD 6H)"

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Latest revision as of 06:40, 12 July 2024

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616.8.1 Temporary Traffic Control for Contract Plan Sheet Development

Each work zone is different and requires different temporary traffic control (TTC) plans. For contract plan sheets, MUTCD (2009) Chapter 6H provides the typical applications (TAs) to develop TTC plans and for in-field modifications as directed by the engineer. TAs should be altered, when needed, to fit the conditions of the specific work zone. See EPG 237 for additional plan sheet guidance.

References to work vehicle or shadow vehicle made in the MUTCD will be considered incidental and should be indicated as such on the TTC plans.

When optional items are referenced in the MUTCD, the contractor may, at their discretion, utilize the items as incidental. When the TTC plans indicate one or more of these items as required for stationary work activities, applicable pay items will apply and will be included. Field adjustments, as directed by the engineer, may require additional pay items via a change order. When use of a Truck Mounted Attenuator (TMA) is deemed necessary for one or more stationary work activities, this will be indicated on the TTC plans, the Truck Mounted Attenuator (TMA) for Stationary Work Activities JSP will be included in the contract, and the Truck Mounted Attenuator pay item will be provided.

TMAs used in mobile operations, such as striping, are considered incidental per Sec 612.5.

616.8.2 Temporary Traffic Control for MoDOT Employees

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

These TAs 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 TAs 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 TAs shown in the EPG are considered current.

616.8.2.1 Typical Applications

[+/-] 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

616.8.2.2 Legend for Typical Applications


Fig. 616.8.2 Meaning of Symbols on Typical Application Diagrams


616.8.2.3 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


616.8.2.4 Recommended Advance Warning Sign Minimum Spacing

Table 616.3.4, 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.


616.8.2.5 Recommended Taper Length and Spacing

Table 616.3.5, 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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