616.8 Typical Applications (MUTCD 6H)

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

Support Figure Description	Effective Date
Flagger control for Resurfacing or Moving Operations on a Two-Lane Highway	9-15-23
Lane Closure on a Two-Lane Highway near Intersections	9-15-23
Lane Closure on a Two-Lane Highway - 3 mile Flagging Scenarios	9-15-23
Lane Restriction on a Two-Lane Highway Vertical Clearance at Bridge	9-15-23
Side Roads Entering Work Zones	9-15-23
TMA Flagger Design	9-15-23
Lane Closure on Alternating Passing Lanes	9-15-23
Begin/End of Project Signing	9-15-23

[+/-] 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

Support Figure Description	Effective Date
Lane Closure on Alternating Passing Lanes	9-15-23
Lane Restriction on Divided Highways Width Clearance at Bridge	9-15-23
Begin/End of Project Signing	9-15-23

[+/-] 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.