Short-Term Stationary Operations
(PATA 400 Series)

PATA 401 Series (Old PATA 5)
Work Space On Or Beyond The Shoulder (No Roadway Encroachment)

  1. The shadow vehicle and traffic control devices are not required if the work space is outside the highway right-of-way, behind barrier, more than 2' behind curb, or 15' or more from the edge of any roadway.
  2. For operations of 60 minutes or less, all traffic control devices are not required.
  3. Refer to PATA 007 for installing advance warning signs for freeways and expressways.

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.

PATA 402 (Old PATA 18)
Work Space In The Left Or Right Lane

  1. For left lane closures, the Left Lane Closed (W20-5L) sign shall be used instead of the Right Lane Closed(W20-5R) sign and the Left Lane Ends (W4-2L) sign shall be used instead of the Right Lane Ends (W4-2R) sign.
  2. Refer to PATA 007 for installing advance warning signs for freeways and expressways.
  3. Refer to PATA 012 for arrow panel sizing.

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.

PATA 403 (Old PATA 20)
Work Space In Two Adjacent Lanes

  1. For two left lane closures, the Left Two Lanes Closed (W20-5AL) sign shall be used instead of the Right Two Lanes Closed (W20-5AR) sign and the Left Lane Ends (W4-2L) sign shall be used instead of the Right Lane Ends (W4-2R) sign.
  2. Refer to PATA 007 for installing advance warning signs for freeways and expressways.
  3. Refer to PATA 012 for arrow panel sizing.

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.

PATA 404 (Old PATA 21)
Lane Closure Near A Freeway Or Expressway Exit Ramp

  1. Channelizing devices placed near the off ramp will be spaced more closely together. Spacing requirements (D Max., 1/2D Max., 1/4D Max.) are shown in parenthesis next to the length dimension.
  2. In locations with heavy ramp traffic, the channelizing devices in advance of the ramp may be eliminated if special advance signing is erected to indicate that the right lane is a mandatory exit only lane.
  3. The temporary Exit (W25-4) sign shall be located in the temporary gore. It shall be mounted a minimum 7' from the pavement surface to the bottom of the sign.
  4. Refer to PATA 007 for installing advance warning signs for freeways and expressways.
  5. Refer to PATA 012 for arrow panel sizing.

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.

PATA 405 (Old PATA 22)
Lane Closure Near A Freeway Or Expressway Entrance Ramp

  1. The acceleration lane should be maintained at the longest length that will accommodate adjacent tapers.
  2. If a ramp entering a freeway or expressway is normally controlled with a yield sign, then the yield condition should remain during temporary traffic control if both a and b are true:
    1. Available sight distance for traffic emerging from the ramp is greater than the minimum stopping sight distance shown in the MUTCD Table 6C-2.
    2. An acceleration distance of at least 200' is provided.
    3. If a or b are not satisfied or if an engineering and traffic study has been approved with the recommendation for a stop condition, than implement a stop condition.
  3. When Stop (R1-1) signs are used to control ramp traffic, Stop Ahead (W3-1) signs shall be placed along the ramp. When Yield signs (R1-2) are used to control ramp traffic, Yield Ahead (W3-2) signs shall be placed along the ramp.
  4. Placement of the temporary Merge Right (W4-1R) sign is optional if the permanent Merge Right (W4-1R) sign is clearly visible and is within 500' of the location shown in this PATA.
  5. Refer to PATA 007 for installing advance warning signs for freeways and expressways.
  6. Refer to PATA 012 for arrow panel sizing

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.

PATA 406 (Old PATA 21 Ramp)
Work Space On A Ramp

  1. If the shoulder is to be used for vehicular traffic, insure the shoulder is in good condition and free of debris prior to its use.
  2. Refer to PATA 007 for installing advance warning signs for freeways and expressways.

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.

PATA 407 (Old PATA 43)
Rolling Slow Down Or Stoppage

  1. This operation shall be done during non-peak hours of traffic, to be determined by the District Traffic Unit.
  2. Use one shadow vehicle per lane; each equipped with a Truck Mounted Attenuator (TMA). These vehicles should start side by side at least one mile in advance of the point of stoppage and drive towards the work area to gradually slow traffic down. Once traffic is stopped one of the shadow vehicles shall block the roadway while the other is used in blocking the closed lane to discourage motorists from driving around. Drivers should be in communication with each other and one person at the work area.
  3. Traffic utilizing the on-ramps must be stopped until the shadow vehicles pass beyond the end of the ramp. Channelizing devices shown on the ramp which are placed behind a shadow or work vehicle are optional and may be useful in closing the ramp and shoulders.
  4. After this operation has been active for 15 minutes, all queued traffic shall be cleared and any succeeding 15 minute stoppage shall not occur until traffic flow has returned to normal pre-stoppage conditions.
  5. A Portable Changeable Message Sign (PCMS) may be placed along the highway to provide advance notice to drivers. If used, the PCMS should be placed approximately 1 mile in advance of the first Lanes Blocked Ahead (W20-101) sign.
  6. All PCMS should be placed off the shoulder and behind a traffic barrier, if practical. Where barrier is not available to shield the PCMS, it should be placed off the shoulder and outside of the clear zone. If a PCMS must be placed on the shoulder or within the clear zone, it shall be delineated with retroreflective temporary traffic control devices. PCMS should not be located within the limits of a highway interchange. Refer to PATA 008 for further guidance.
  7. If multiple PCMS are utilized then additional signs may be placed in advance of the initial PCMS. A minimum spacing of at least 1000' shall be maintained between PCMS facing the same direction and shall be located on the same side of the roadway.
  8. Contact the District or Regional Traffic Management Center (TMC) two weeks in advance to provide information regarding this operation and to request guidance for PCMS message content and timing. Notify the same TMC one hour prior to beginning this operation.
  9. Additional PCMS may be used in lieu of the static signs.
  10. Refer to PATA 007 for installing advance warning signs for freeways and expressways.

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.

PATA 408 (Old PATA 44)
Rolling Slow Down Or Stoppage With Existing Lane Closure

  1. This operation shall be done during non-peak hours of traffic, to be determined by the District Traffic Unit.
  2. Use one shadow vehicle per lane; each equipped with a Truck Mounted Attenuator (TMA). These vehicles should start side by side at least one mile in advance of the point of stoppage and drive towards the work area to gradually slow traffic down. Once traffic is stopped one of the shadow vehicles shall block the roadway while the other is used in blocking the closed lane to discourage motorists from driving around. Drivers should be in communication with each other and one person at the work area.
  3. Traffic utilizing the on-ramps must be stopped until the shadow vehicles pass beyond the end of the ramp. Channelizing devices shown on the ramp which are placed behind a shadow or work vehicle are optional and may be useful in closing the ramp and shoulders.
  4. After this operation has been active for 15 minutes, all queued traffic shall be cleared and any succeeding 15 minute stoppage shall not occur until traffic flow has returned to normal pre-stoppage conditions.
  5. A Portable Changeable Message Sign (PCMS) may be placed along the highway to provide advance notice to drivers. If used, the PCMS should be placed approximately 1 mile in advance of the first Lanes Blocked Ahead (W20-101) sign.
  6. All PCMS should be placed off the shoulder and behind a traffic barrier, if practical. Where barrier is not available to shield the PCMS, it should be placed off the shoulder and outside of the clear zone. If a PCMS must be placed on the shoulder or within the clear zone, it shall be delineated with retroreflective temporary traffic control devices. PCMS should not be located within the limits of a highway interchange. Refer to PATA 008 for further guidance.
  7. If multiple PCMS are utilized then additional signs may be placed in advance of the initial PCMS. A minimum spacing of at least 1000' shall be maintained between PCMS facing the same direction and shall be located on the same side of the roadway.
  8. Contact the District or Regional Traffic Management Center (TMC) two weeks in advance to provide information regarding this operation and to request guidance for PCMS message content and timing. Notify the same TMC one hour prior to beginning this operation.
  9. Additional PCMS may be used in lieu of the static signs.
  10. Refer to PATA 007 for installing advance warning signs for freeways and expressways.

Signs

Sign Spacing Chart

Condition Distance
A B C F
  Feet Feet Feet Feet
Freeways & Expressways 1000 1640 2640 5280

When multiplee distance plagues are used on advance warning signs, they shall all be of the same series type.
Example: either all "AHEAD" or XXX FEET.

Taper Length Formulas

S L
40MPH or Less L = WS2/60
45MPH or Less L = WS

S = regulatory speed limit
W = Width of offset
L = Length

Distance and Spacing Quick Reference Chart

Speed W L 1/2 L 1/3 L Min. Channelizing Devices
Per Taper Type (Length)
D E H
MPH Feet Feet Feet Feet L 1/2 L 1/3 L 50' Feet Feet Feet
40 12 320 160 110 9 6 6 6 80 305 150
45 12 540 270 180 13 7 6 6 90 360 150
50 12 600 300 200 13 7 6 6 100 425 250
55 12 660 330 220 13 7 6 6 110 495 250
60 12 720 360 240 13 7 6 6 120 570 250
65 12 780 390 260 13 7 6 6 130 645 250
70 12 840 420 280 13 7 6 6 140 730 250

Note: Channelizing devices used in taper shall be equally spaced at 1/2 D Max.