Lane Closure on a Two-Lane Road with Low Traffic Volumes
Alternative to TA-10 where gaps are sufficient and traffic can self-regulate.
MUTCD Figure 6P-11
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 Edone lane two way taper
50 ft min, 100 ft max
50 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
900 ft
Related tools
TA-10 · Lane Closure on a Two-Lane Road Using Flaggers
One lane of a two-lane road closed, alternating one-way traffic controlled by flaggers. The most-requested TTC plan for utility and small civil work.
TA-12 · Lane Closure on a Two-Lane Road Using Temporary Traffic Control Signals
One-lane, two-way operation controlled by portable signals instead of flaggers.