Median Crossover for an Entrance Ramp
Crossover treatment at an entrance ramp.
MUTCD Figure 6P-40
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 Edshifting taper
at least 0.5 L
125 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
975 ft
Related tools
TA-6 · Shoulder Work with Minor Encroachment
Work encroaches slightly into the travel lane; traffic shifts, remaining lane 10 ft minimum.
TA-18 · Lane Closure on a Minor Street
Lane closed on a low-speed, low-volume city street. The common utility-cut sheet.
TA-28 · Sidewalk Detour or Diversion
Sidewalk closed with an accessible detour or diversion path.