Concrete planters for calming traffic removed after frequent collisions

In this aerial photo, the driver of a white minivan is seen crashing into a concrete traffic-calming planter on NE 53rd and Irving. PBOT has since removed the planter. (Photo: Ted Timmons)

The City of Portland is removing traffic-calming infrastructure because drivers run into them too often. While that might seem like success to some, continued clashes between car drivers and concrete planters has led to high maintenance costs and transportation officials say it’s not worth the effort.

Several readers have reported to BikePortland recently that the large, round, concrete planters installed on bike routes throughout the city have gone missing. When the first batch of these were installed in 2021, we said they were a very big deal because their size and stature seemed unavoidable and it was a relatively bold safety move by the Portland Bureau of Transportation (PBOT).

The round, 2,500 pound planters filled with concrete were installed at strategic locations to protect bike lanes at conflict points, to reduce speeds and lower car traffic volumes on neighborhood greenways and other key bike routes. They would often come with yellow advisory 15 mph “shared street” speed limit signs and reflective material to enhance their impact.

These planters emerged from PBOT’s Slow Streets Program which began in May 2020 during the Covid pandemic with flimsy signs and orange plastic barrels placed in streets at 200 locations. The idea was to calm drivers and improve safety for walkers and bikers during a crisis when Portlanders needed more outdoor, Covid-safe public spaces in a hurry. In 2021, PBOT opted to make 100 of those locations permanent, using more robust materials in hopes they’d require less maintenance than the signs and plastic barrels.

But that’s not how things have turned out.

In May of this year, Portlander Ted Timmons (and amateur pilot and aerial photographer) emailed 311 (311@portlandoregon.gov) to report one missing near his home in the North Tabor neighborhood. “Until recently there was a large concrete planter on NE 53rd near Irving,” Timmons wrote. “It is gone. What happened? Will it be replaced or is it permanently gone? I own a house within sight of it, and I really appreciated how it helped with traffic calming.”

A few weeks later, Timmons received a response from PBOT Bicycle Coordinator Roger Geller, telling him it was removed, “due to excessive maintenance issues.” “It kept getting hit,” Geller wrote. “Which created a consistent maintenance burden for PBOT staff. In the future, there may be other more permanent improvements that can be installed at this intersection but there is nothing identified yet.”

The planter at NE 53rd and Irving was installed in 2022 to calm traffic near one of PBOT’s advisory bike lane installations.

A month after Timmons emailed, I heard from reader Chris H. He noticed planters had gone missing in two locations along the North Central Avenue neighborhood greenway (at N Richmond and N Chicago). Chris emailed PBOT’s Geller to ask where they’d gone. Geller offered the same response he gave Ted T, and then added, “The concrete planters were installed in large part to reduce maintenance issues with the plastic orange barrels that were initially installed in May of 2020. Unfortunately, the tight turning radius created a consistent maintenance burden for PBOT staff.”

Chris called the decision “discouraging and frustrating,” and wrote to Geller that he’d be forced to, “avoid N Central during commuting hours from now on.”

The decision to remove these planters wasn’t Geller’s alone. The May 2024 Slow Streets Draft Evaluation Report (PDF) released by PBOT says despite being popular with the public, the program wasn’t effective at calming traffic, and some locations were hit so many times by car users it drained maintenance resources.

“Overall, speed and traffic volume changes were mixed making it difficult to attribute any changes in traffic operations to the Slow Streets program,” reads the draft report. And from a roadway design perspective, the report says the goal of converting 100 locations to more permanent treatments might have been too ambitious and didn’t allow PBOT engineers to do thorough site analysis for each one. (As of May 2024, PBOT says 62 locations have been converted.) “The wide-spread approach led to some locations with unexpected operational issues that required significant maintenance to correct. Individual site assessment by engineering staff will help avoid future maintenance issues,” states the report.

This planter has been shoved several feet from its original location. (Photo: PBOT)

The original “a-board” signs and orange plastic barrels were moved so often, PBOT contractors had to make weekly (and often more frequent) site visits to put them back in place. PBOT assumed 2,500 pound concrete planters would fix this problem. Turns out they underestimated the force and frequency with which some drivers’ cars hit them.

According to maintenance records, in the 20 months between July 2021 and April 2023, PBOT fielded 75 requests for upkeep at 55 locations. 60 of those requests required two PBOT maintenance workers to respond with a winch-equipped vehicle or small forklift to move the planters back into place.

With high maintenance costs and inconclusive data on speeds and traffic volumes, PBOT’s report says their Slow Streets infrastructure is “not impactful” and they prefer more traditional traffic calming methods like diversion and speed bumps.

PBOT’s conclusions in the report were likely influenced by a directive (PDF) from City Traffic Engineer Wendy Cawley. Effective March 11, 2024 Cawley called out a variety of temporary materials PBOT uses — including “planters” and “paint and post installations” — and said staff are no longer allowed to use them without prior approval and they can be used only in limited situations.

“Temporary materials require more maintenance than permanent infrastructure when left in the field for long periods of time,” the Cawley memo reads. “PBOT is facing a fifth year of budget cuts and cannot afford to reliably maintain temporary materials/infrastructure at the current level of usage. Additionally, the aesthetics of temporary materials do not support the vision for Portland that City Leadership and Portlanders have.”

If concrete planters are used, Cawley says they, “must be protected by concrete curbing to minimize vehicle strikes and the need to reset or move materials back into place.”

While PBOT has cooled on Slow Streets-style installations, the public seems to have loved it. PBOT received over 2,000 comments about the Slow Streets Program and presented about it to over 50 neighborhood associations. PBOT says the comments were “overwhelmingly positive” and “staff consistently heard that Slow Streets had a positive impact on Portland streets and communities.”

Overall, the signs and planters have functioned well as gateways to greenways and in helping raise awareness of safer bicycle routes and the people who use them; but PBOT believes they haven’t worked as a permanent traffic engineering solution.

To effectively calm Portland streets it will take an even more robust approach from PBOT. And they say they’re ready to do it with more engineering analysis and more permanent infrastructure, as long as they can identify the funding to make it happen.


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Jonathan Maus (Publisher/Editor)

Jonathan Maus (Publisher/Editor)

Founder of BikePortland (in 2005). Father of three. North Portlander. Basketball lover. Car owner and driver. If you have questions or feedback about this site or my work, feel free to contact me at @jonathan_maus on Twitter, via email at maus.jonathan@gmail.com, or phone/text at 503-706-8804. Also, if you read and appreciate this site, please become a supporter.

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Lois Leveen
Lois Leveen
1 hour ago

When a driver slams into a pedestrian, bicyclist, another vehicle, or private property, it costs PBOT nothing. So PBOT, thinking only of its own budget lines, removes infrastructure that is keeping drivers from slamming into pedestrians, bicyclists, other vehicles, and private property. Another example of how PBOT is not focused on the well-being of Portlanders.

It would be great if we could somehow convince PBOT that human life is valuable, too. Or if we could make PBOT feel a budget pinch every time their decisions endanger Portlanders.

But why cannot PBOT just BILL THE DRIVERS who are hitting the infrastructure for the cost of fixing or replacing what the drivers damage?

I realize some drivers just hit stuff (concrete barriers or human beings) and drive away. But if my neighbors can all put cameras on their doorbells to record everything that happens in front of their houses, why cannot PBOT install cameras that would record the reckless drivers too?

Sarnia
Sarnia
1 hour ago
Reply to  Lois Leveen

It’s really difficult to positively identify a vehicle and license plate, even in high resolution imagery. But even if you could, the amount of money it would take to pay staff to review video, research who is responsible for damaging infrastructure, tracking them down, and then extracting money from the responsible party would surely be much more than the revenue you could hope to generate. How are you going to get them to pay for three damage? They aren’t going to do it out of the kindness of theire heart or a moral obligation. Only the threat of criminal prosecution or a lawsuit is going to get someone to pay. And for that, you need to pay attorneys. Lawyers don’t come cheap.

Traffic cameras are a good model for speed enforcement, but they aren’t going to be nearly as effective as a revenue source for infrastructure maintenance.

John V
John V
1 hour ago

What a giant disappointment. PBOTs refusal to try anything else to address the supposed problems just drives me crazy. “Remove the infrastructure people love with hopes that some nebulous un-funded other solution might come later”.

What a step backwards.

Ben
Ben
1 hour ago

One might argue that a driver hitting something so big and obvious might be grounds for having their license removed, not the big and obvious thing. Obviously.

Watts
Watts
1 hour ago

While that might seem like success to some”

I think that sums up one of the big problems with our community.

Andrew S
Andrew S
10 minutes ago
Reply to  Watts

Perhaps. I certainly don’t want folks to hit these things. I don’t think traffic calming should be designed to punish bonehead drivers, but it should do more to actually alter people’s behavior.

The community problem here is that we (the city of Portland) look at a temporary concrete planter and say “Sweet, we did traffic calming!” and then drivers go and run into it, when we should have built an actual daggum traffic circle in the first place. Better for everyone in the long run to do it right the first time, but we waste so much money and political capital on these halfway temporary measures so we don’t piss as many people off. I’m sure many PBOT staff are trying their best, but I wish the decision makers could realize that you’re never going to make everyone happy, but at least you can make the streets safer.

JaredO
JaredO
1 hour ago

If the problem is funding, it seems like the state legislature should authorize cities to use cameras in these locations, and have the maintenance costs for the barriers covered by those who hit them.

I think it’s a pretty standard practice when there’s a crash for the damage to public infrastructure be paid for by the driver/insurance company.

If people understand damaging these things will be on their dime, rather than the city’s, they might actually work to avoid them.

Watts
Watts
51 minutes ago
Reply to  JaredO

If people understand damaging these things will be on their dime, rather than the city’s, they might actually work to avoid them.

Do you think repairing their car isn’t sufficient motivation? I don’t think “motivation” is the right framework for thinking about this issue. I think it’s some combination of driver skill and limitations on human cognition, specifically ability to focus for long periods on routine tasks, especially when tired or distracted.

Mark Remy
Mark Remy
1 hour ago

“(D)iscouraging and frustrating” is putting it mildly.

This is infuriating. 

Micah Prange
Micah Prange
53 minutes ago

So frustrating! I wonder what the payback time is for a “permanent traffic engineering solution” that has lower maintenance costs is.

AL
AL
46 minutes ago

It’s unfortunate that they’re removing them but I’d rather PBOT spend money on better things than moving concrete barrels

X
X
46 minutes ago

Some cars should wear a helmet. It’s a dangerous world full of hard heavy objects, like boulders, trees and such. Maybe the cars should stay home, or take extra care when they have to go out? Are PSAs in order?

It must be some kind of infraction to interfere with a traffic control device.

I’m disappointed that PBOT is retreating instead of doubling down. Is it that the planters are only kid height instead of being more or less truck sized? Because they could be taller and heavier. If a person drives their vehicle into a fixed object it amounts to culling the herd.

Biking 101 lesson: don’t hit the hard stuff.

Matt Villers
Matt Villers
41 minutes ago

The aesthetic part of the statement makes is downright enraging. Yes I’m sure we’d all like the traffic calming measures to “look nice”, but I’m far and away more concerned with cars not tearing down my neighborhood street as if it were a highway.

The very fact that they’re being consistently hit is proof that they’re badly needed, and I hope we can get effective permanent replacements in for these ASAP.

Bjorn
Bjorn
10 minutes ago

This is the first time I have ever heard PBOT say that they prefer diversion, it seems like it is incredibly difficult to get them to use diverters to calm traffic even on neighborhood greenways, hopefully we are seeing a shift towards a willingness to install more diverters in more locations.

Andrew N
Andrew N
7 minutes ago

Rather than write something assertive I’m just going to ask Jonathan: what *would*, in your eyes, accountability look like at PBOT? Do you for some reason not think that Geller has become overly comfortable in his decades in the same position? And that the bicycling community might benefit from having someone younger and less complicit in PBOT’s bureaucratic ossification, despite the loss of institutional memory his exit would entail? Could it not be some sort of rotating position? I’m guessing it’s personally awkward for you but this seems like the exact kind of situation that begs for a different approach, particularly given our decline in bicycling numbers, and yet… I feel like I’ve seen this movie before…