I’ve spent more time looking at the 2023 MUTCD, Part 6, Temporary Traffic Control. The document is a bit convoluted, and I didn’t realize there were references in several locations, which taken together though not separately, provide better guidance for sidewalk barricades.

Figure 6K-2 provides a diagram for ‘pedestrian channelizing device’. The example is for the side of a temporary walkway, shown curved (though Figure 6P-29 shows right angles).

In a separate location, the notes page for Figure 6P-29, the text reads, Standard 1 “When existing pedestrian facilities are disrupted, closed, or relocated in a TTC zone, the temporary facilities shall be detectable and include accessibility features consistent with the features present in the existing pedestrian facility. A pedestrian channelizing device (see Figure 6K-2) that is detectable by a person with a vision disability traveling with the aid of a long cane shall be placed across the full width of the closed sidewalk.” The same channelizing device can be used as a barricade to close sidewalks. Imagine the left-most panel in the diagram, extending across the width of the sidewalk. I think that the three examples I used in my previous post (SacCity work zone comments) would be compliant, though I am not certain.

Audible Warning

Another item of critical importance, that I did not initially pick up on, is the new requirement for audible warning: Notes for Figure 6P-28, Standard 5 (page 914): “SIDEWALK CLOSED CROSS HERE signs shall include audible information devices to provide adequate communication to pedestrians with vision disabilities.” The ‘sidewalk closed cross here’ sign is MUTCD R9-11a, which is the advance warning, used at the last available crosswalk.