Lane Closure with a Temporary Traffic Barrier
Lane closure protected by temporary concrete barrier.
MUTCD Figure 6P-34
Posted speed limit, off-peak 85th-percentile speed prior to work starting, or anticipated operating speed.
How far traffic is moved sideways — usually the width of the closed lane.
This typical application does not have a generator yet, so it cannot be opened in the builder. The computed geometry below still applies.
Computed for your conditions
MUTCD 11th Edmerging taper
at least L
245 ft
Base L
Table 6B-4
245 ft
Device spacing in taper
1 × speed, Section 6K.01
35 ft
Device spacing on tangent
2 × speed, Section 6K.01
70 ft
Advance warning area
Table 6B-1
300 ft
Longitudinal buffer
Table 6B-2
250 ft
Total zone length
1095 ft
Related tools
TA-21 · Lane Closure on the Near Side of an Intersection
Lane closed approaching an intersection.
TA-22 · Right-Hand Lane Closure on the Far Side of an Intersection
Right lane closed just beyond an intersection.
TA-23 · Left-Hand Lane Closure on the Far Side of an Intersection
Left lane closed just beyond an intersection.