SacCity work zone done wrong

There is a construction zone at the northwest corner of Q Street and 21st Street which serves to illustrate what can go wrong with work zone signing. I am not picking on this particular construction site, as it is a rehabilitation of historical housing, which I fully support. I’ve seen worse construction sites, I’ve seen better construction sites, but this is a current example.

On Q Street at 20th Street, at the last crosswalk before the construction zone, there is the sign below. It is a roadway construction sign, not a sidewalk closure sign. Note that this sign was not here until I reported the location to 311. Following is the sign that should be here, MUTCD R9-11a.

photo of Q-St at 20th-St advance warning sign
Sac_Q-St-20th-St_advance-warning
MUTCD R9-11a right sign
MUTCD R9-11a right sign

On Q Street approaching 21st Street, at the point of closure, there is this sign and a chainlink fence. This sign has been turned so it is not visible to someone approaching, and the traffic barricade on which it is mounted is a trip hazard. Following is the sign that should be here, MUTCD R9-11. Chain link fence is not an acceptable detectable barricade. Imagine using a long cane and running into this. What would you think? What would you do?

photo of Q-St near 21st-St sidewalk closed ahead sign
Sac_Q-St-21st-St_sidewalk closed
MUTCD R9-9 sign
MUTCD R9-9

For the crosswalk over Q Street at 21st Street, here is the sign. Note that this sign was not here until I reported the location to 311. Following is the sign that should be here, MUTCD R9-10.

photo of 21t-St at Q-St sidewalk-closed ahead sign for crosswalk
Sac_21t-St-Q-St_sidewalk-closed ahead
MUTCD R9-10 sign
MUTCD R9-10

On 21st Street crossing at Q Street, north side, there is a sign on the ground that was intended to mark the closed crosswalk, before it was knocked down by the wind or by people. This is what happens when work zone signing is not monitored by the construction company. Note that this sign was not here until I reported the location to 311. Following is the sign that should be here, MUTCD R9-10.

photo of 21st-St at Q-St sign on ground for crosswalk
Sac_21st-St-Q-St_sign-on-ground
MUTCD R9-10 sign
MUTCD R9-10

On 21st Street at P Street, there should be an advance warning sign. There is not. Following is the sign that should be here, MUTCD R9-10.

photo of 21st-St at P-St no advance warning sign
Sac_21st-St-P-St_no-advance-warning
MUTCD R9-11a left

On 21st Street at Powerhouse Alley, where the sidewalk is closed, there is the sign shown below. Again, it is the incorrect sign, mounted on a traffic barricade that is in itself a trip hazard since it does not meet detectability requirements. The chain link fence is not an acceptable detectable barricade. Following is the sign that should be here, MUTCD R9-11.

photo of 21st-St at Powerhouse-Alley sidewalk closed sign
Sac_21st-St-Powerhouse-Alley_sidewalk-closed
MUTCD R9-9 sign
MUTCD R9-9 sign

The use of incorrect signs, missing signs, and lack of detectable barricades, are problems that could be corrected, if the construction company had a compliant Temporary Traffic Control Plan, and if the city monitored the location for compliance. More about that in the next post.

SacCity work zone comments

I developed comments on the Draft Criteria and Guidance to Accommodate Active Transportation in Work Zones and at Events, and submitted them to the city, attached if you wish to take a look. There is a roundtable meeting for stakeholders on January 9, and a community meeting later in the month, possibly January 24.

PROWAG (Public Right of Way Accessibility Guidelines), released in August 2023, has the force of law, whereas MUTCD and CA-MUTCD are advisory, so relevant sections of PROWAG must be referenced in the work zone guidance.

Signing

PROWAG Chapter 3 says: [R303.2 Signs: Signs identifying alternate pedestrian access routes shall be provided in advance of decision points and shall comply with R410. Proximity actuated audible signs or other non-visual means within the public right-of-way of conveying the information that identifies the alternate pedestrian access route shall also be provided.]

The draft guideline says: ‘Proposed design and placement of the temporary traffic control signs, devices, and roadway markings must follow the most recent edition of the CA MUTCD.’

The draft guidelines must make clear that CA-MUTCD/MUTCD signs as shown on the diagrams must be used. This is a common failing of construction zone signing. Companies, and the city, use whatever similar signs happen to be on hand. They use roadway construction signs, and paper signs that melt in the rain and blow away in the wind. Note: I submitted a comment to FHWA for the MUTCD revision that these signs should be construction orange, as they are temporary construction closures, not permanent. They didn’t listen.

Barriers

MUTCD text and figures show barriers in crosshatched orange. Unfortunately, neither MUTCD nor PROWAG show details of what that barrier should look like. It is common in construction projects to use chain link fence or roadway construction barriers on sidewalks, but these do not meet the requirements for detectability by persons using canes. Though PROWAG does not specifically address barriers (unfortunately), it does have the text: R303.6.1 Top: The top of the top detectable edging shall be no lower than 32 inches (815 mm) above the walking surface and be free of sharp or abrasive surfaces, and R303.6.2 Bottom: The bottom of the bottom detectable edging shall be 2 inches (51 mm) maximum above the walking surface.

There are two diagrams that I’ve used before, left and center. Right is a commercial product (though note is is only compliant if the props are away from the walker, otherwise they are a trip hazard). This model has been used in several places in Sacramento, but they tend to fall down in wind, so may not be the best. The channelizer in center is often used as a barricade at crosswalks, and I believe this use is compliant, and they don’t fall down in wind. The draft guidelines must include some sort of diagram, otherwise, companies will use whatever is on hand, and whatever a sighted person thinks is sufficient.

The left diagram is from Applying the Americans with Disabilities Act in Work Zones: A Practitioner’s Guide (https://workzonesafety.org/publication/applying-the-americans-with-disabilities-act-in-work-zones-a-practitioner-guide/), and the center diagram is from Work Zone Pedestrian and Bicycle Guidance (https://www.vdot.virginia.gov/media/vdotvirginiagov/doing-business/technical-guidance-and-support/technical-guidance-documents/traffic-engineering/WZ_Ped_Bike_Guide.pdf).

Diagrams

The sidewalk diagram in the new 2023 MUTCD Figure 6P-28 is better than the 2014 CA-MUTCD Figure 6P-28 because it makes clear that ramps from sidewalk level street level are necessary for a diversion. That diagram is below, and should replace the one in the draft guidelines. Figure 6P-29 is the same in both.