NOTES:
1. The flashing arrow board shall be used when the posted speed limit is
45 mph or greater.
2. The Lane Drop symbol sign and the Merge with arrow sign may be omitted
when the posted speed limit is 40 mph or less.
3. Use the appropriate traffic control devices for a right lane closure.
Temporary Traffic Control Distance Charts
Posted Speed
Limit Prior
to Work
Starting
(mph)
0 - 30
35 - 40
45 - 50
55
60 - 65
70 - 75
100
feet
3
3
Typical
Shoulder
Taper
(A)
(D)
(L)
(L/2)
(L/3)
feet
250
325
feet
550
700
feet
200
325
feet
100
175
feet
75
125
600
750
1000
1200
900
1200
1400
1600
600
700
800
900
300
350
400
450
200
250
275
300
G = 25 ft
G = 50 ft
Shadow Vehicle
Following Distance
(mph)
(B)
(F)
feet
200
305
feet
250 - 550
325 - 700
feet
100
100
feet
100
100
425
500
650
820
600 - 900
750 - 1200
1000 - 1400
1200 - 1600
175
175
225
225
125
125
175
175
G = 25 ft
G = 50 ft
Protection Vehicle
Roll-Ahead Buffer Distance
(with or without TMA)
Moving (R)
(15 mph max)
Stopped
TYPE A CHANNELIZERS:
4 inch Diameter Minimum
2 3
2
or
Shifting
Taper
Type A channelizing devices are typically used in attended
temporary traffic control zones.*
or
3
Taper
Length
(12 ft lane)
Buffer
Space
45 - 50
55
60 - 65
70 - 75
1
Decision
Sight
Distance
Posted Speed
Limit Prior
to Work
Starting
0 - 30
35 - 40
3
Advance
Warning
Sign
Spacing
3
daytime
low speed
only
36 inch
Minimum
daytime
low speed
only
18 inch
Minimum
3
18 inch
Minimum
TUBULAR MARKERS
3
42 inch
Minimum
28 - 36 inch
Minimum
CONES
WEIGHTED
CHANNELIZER
Type B channelizing devices shall be used if the temporary traffic
control zone will be installed for more than 12 hours or if it is left
unattended. *
variable
TYPE B CHANNELIZERS:
270 square inch minimum of retroreflective sheeting surface
OPTIONAL
36
inches
LANE CLOSURE
VERTICAL PANEL
MULTI-LANE DIVIDED ROAD
3 DAYS or LESS
24
inches
LAYOUT 53
36 inches
minimum
36 inches
minimum
TYPE I
BARRICADE
TYPE II BARRICADE
DIRECTION INDICATOR
BARRICADE
DRUM
* See the MN MUTCD, Part 6F for more details on application restrictions.
Temporary Traffic Control Distance Charts
Posted Speed
Limit Prior
to Work
Starting
(mph)
0 - 30
35 - 40
45 - 50
55
60 - 65
70 - 75
Advance
Warning
Sign
Spacing
Decision
Sight
Distance
Taper
Length
(12 ft lane)
Shifting
Taper
Typical
Shoulder
Taper
(A)
(D)
(L)
(L/2)
(L/3)
feet
250
325
feet
550
700
feet
200
325
feet
100
175
feet
75
125
600
750
1000
1200
900
1200
1400
1600
600
700
800
900
300
350
400
450
200
250
275
300
G = 25 ft
G = 50 ft
Posted Speed
Limit Prior
to Work
Starting
Buffer
Space
Shadow Vehicle
Following Distance
(mph)
(B)
(F)
feet
200
305
feet
250 - 550
325 - 700
feet
100
100
feet
100
100
425
500
650
820
600 - 900
750 - 1200
1000 - 1400
1200 - 1600
175
175
225
225
125
125
175
175
0 - 30
35 - 40
45 - 50
55
60 - 65
70 - 75
G = 25 ft
G = 50 ft
NOTES:
1. Use the appropriate advance warning sign spacing for the
speed on the cross road.
2. The flashing arrow board shall be used when the posted speed
limit is 45 mph or greater.
3. The Lane Drop symbol sign and the MERGE with Arrow sign
may be omitted when the posted speed limit is 40 mph or less.
100
feet
G
Protection Vehicle
Roll-Ahead Buffer Distance
(with or without TMA)
Moving (R)
(15 mph max)
Stopped
25 feet
25 feet
200
feet
Type A channelizing devices are typically used in attended
temporary traffic control zones.*
200
feet
TYPE A CHANNELIZERS:
L
4 inch Diameter Minimum
daytime
low speed
only
36 inch
Minimum
daytime
low speed
only
18 inch
Minimum
18 inch
Minimum
TUBULAR MARKERS
G
42 inch
Minimum
28 - 36 inch
Minimum
2
3
CONES
or
G
3
WEIGHTED
CHANNELIZER
3
or
Type B channelizing devices shall be used if the temporary traffic
control zone will be installed for more than 12 hours or if it is left
unattended. *
TYPE B CHANNELIZERS:
TURN
LA N E
variable
270 square inch minimum of retroreflective sheeting surface
OPTIONAL
36
inches
24
inches
VERTICAL PANEL
36 inches
minimum
36 inches
minimum
TYPE I
BARRICADE
TYPE II BARRICADE
DIRECTION INDICATOR
BARRICADE
DRUM
* See the MN MUTCD, Part 6F for more details on application restrictions.
RIGHT LANE CLOSURE
WORK SPACE BEYOND INTERSECTION
MULTI-LANE DIVIDED ROAD
3 DAYS or LESS
LAYOUT 56
NOTES:
1. Use the appropriate advance warning sign spacing for the speed on the
cross road.
2. The flashing arrow board shall be used when the posted speed limit is 45
or greater.
3. The Lane Drop symbol sign and the MERGE with Arrow sign may be
omitted when the posted speed limit is 40 mph or less.
Temporary Traffic Control Distance Charts
Posted Speed
Limit Prior
to Work
Starting
(mph)
0 - 30
35 - 40
45 - 50
55
60 - 65
70 - 75
100
feet
G
TURN
LA N E
Taper
Length
(12 ft lane)
Shifting
Taper
Typical
Shoulder
Taper
(A)
(D)
(L)
(L/2)
(L/3)
feet
250
325
feet
550
700
feet
200
325
feet
100
175
feet
75
125
600
750
1000
1200
900
1200
1400
1600
600
700
800
900
300
350
400
450
200
250
275
300
G = 25 ft
G = 50 ft
Buffer
Space
Shadow Vehicle
Following Distance
(mph)
(B)
(F)
feet
200
305
feet
250 - 550
325 - 700
feet
100
100
feet
100
100
425
500
650
820
600 - 900
750 - 1200
1000 - 1400
1200 - 1600
175
175
225
225
125
125
175
175
45 - 50
55
60 - 65
70 - 75
G = 25 ft
G = 50 ft
Protection Vehicle
Roll-Ahead Buffer Distance
(with or without TMA)
Moving (R)
(15 mph max)
Stopped
200 feet
25 feet
Type A channelizing devices are typically used in attended
temporary traffic control zones.*
200 feet
TYPE A CHANNELIZERS:
G
4 inch Diameter Minimum
L
2
Decision
Sight
Distance
Posted Speed
Limit Prior
to Work
Starting
0 - 30
35 - 40
25 feet
Advance
Warning
Sign
Spacing
daytime
low speed
only
36 inch
Minimum
G
or
3
3
daytime
low speed
only
18 inch
Minimum
18 inch
Minimum
TUBULAR MARKERS
or
42 inch
Minimum
28 - 36 inch
Minimum
CONES
WEIGHTED
CHANNELIZER
Type B channelizing devices shall be used if the temporary traffic
control zone will be installed for more than 12 hours or if it is left
unattended. *
variable
TYPE B CHANNELIZERS:
OPTIONAL
LEFT LANE CLOSURE
WORK SPACE BEYOND INTERSECTION
24
inches
VERTICAL PANEL
MULTI-LANE DIVIDED ROAD
3 DAYS or LESS
36
inches
LAYOUT 55
270 square inch minimum of retroreflective sheeting surface
36 inches
minimum
36 inches
minimum
TYPE I
BARRICADE
TYPE II BARRICADE
DIRECTION INDICATOR
BARRICADE
DRUM
* See the MN MUTCD, Part 6F for more details on application restrictions.
Temporary Traffic Control Distance Charts
Posted Speed
Limit Prior
to Work
Starting
(mph)
0 - 30
35 - 40
45 - 50
55
60 - 65
70 - 75
Advance
Warning
Sign
Spacing
Decision
Sight
Distance
Taper
Length
(12 ft lane)
Shifting
Taper
Typical
Shoulder
Taper
(A)
(D)
(L)
(L/2)
(L/3)
feet
250
325
feet
550
700
feet
200
325
feet
100
175
feet
75
125
600
750
1000
1200
900
1200
1400
1600
600
700
800
900
300
350
400
450
200
250
275
300
G = 25 ft
G = 50 ft
Posted Speed
Limit Prior
to Work
Starting
Buffer
Space
Shadow Vehicle
Following Distance
(mph)
(B)
(F)
feet
200
305
feet
250 - 550
325 - 700
feet
100
100
feet
100
100
425
500
650
820
600 - 900
750 - 1200
1000 - 1400
1200 - 1600
175
175
225
225
125
125
175
175
0 - 30
35 - 40
45 - 50
55
60 - 65
70 - 75
G = 25 ft
G = 50 ft
Protection Vehicle
Roll-Ahead Buffer Distance
(with or without TMA)
Moving (R)
(15 mph max)
NOTES:
1. This layout should be used on high speed roadways where traffic queues may
extend at least 0.5 mile upstream of the taper. If little or no queuing is
anticipated, use the typical lane closure Layout 52.
2. Use the appropriate traffic control devices for a left lane closure.
3. A PCMS may be used in place of a pair of USE BOTH LANES DURING
BACKUPS signs.
4. Distance plaques are recommended when the distance is 2 miles or more.
2
2
Stopped
Type A channelizing devices are typically used in attended
temporary traffic control zones.*
2
A
A
TA K E
TURNS
2
2
BEGIN
MERGE
TA K E
TURNS
L E FT
LA N E
CLOSED
A H EA D
L E FT
LA N E
CLOSED
A H EA D
2
TA K E T U R N S
AT M E R G E
TA K E T U R N S
AT M E R G E
TYPE A CHANNELIZERS:
4 inch Diameter Minimum
daytime
low speed
only
36 inch
Minimum
1 mile
daytime
low speed
only
18 inch
Minimum
18 inch
Minimum
TUBULAR MARKERS
42 inch
Minimum
28 - 36 inch
Minimum
3
USE
BOTH
LA N E S
DURING
BACKUPS
CONES
3
WEIGHTED
CHANNELIZER
USE
BOTH
LA N E S
DURING
BACKUPS
3
Type B channelizing devices shall be used if the temporary traffic
control zone will be installed for more than 12 hours or if it is left
unattended. *
TYPE B CHANNELIZERS:
36
inches
24
inches
VERTICAL PANEL
1 to 2 mile spacing
Continue spacing for
the estimated maximum
queue distance
BACKUPS
3
BACKUPS
USE
BOTH
LA N E S
DURING
3
BACKUPS
USE
BOTH
LA N E S
DURING
3
BACKUPS
A
270 square inch minimum of retroreflective sheeting surface
4
36 inches
minimum
36 inches
minimum
TYPE I
BARRICADE
USE
BOTH
LA N E S
DURING
USE
BOTH
LA N E S
DURING
TYPE II BARRICADE
DIRECTION INDICATOR
BARRICADE
XX
MILES
4
LANE CLOSURE WITH LATE MERGE
DRUM
* See the MN MUTCD, Part 6F for more details on application restrictions.
XX
MILES
MULTI-LANE DIVIDED ROAD
3 DAYS or LESS
LAYOUT 54