Posts Tagged ‘Viaduct’

Surface option? Still not buying it

Friday, October 30th, 2009

Don't let these cars end up on downtown surface streets.
I’m very pleased to see that my post about the future of Highway 99 through downtown Seattle (tunnel vs. surface streets) has engendered so much interesting debate and commentary.

While recent events have toned down the civic debate about the tunnel – mayoral candidate Mike McGinn conceded he won’t try to block it if elected, while his opponent, Joe Mallahan, has supported the tunnel all along — it’s still not yet a resolved issue.  And I have become ever more convinced that if no tunnel were dug that the virtual elimination of this important highway corridor through our city would be disastrous.

My two main areas of greatest concern relate to economic vitality and the street-level environment.

Historically and globally speaking, all major economic powerhouses are located at key crossroads or transportation convergence points, be they waterways, railroads, highways or a combination.  Seattle is a textbook example of this phenomenon.  No one can deny that the roots of Seattle’s historic economic success story lie in its pivotal location.  Whether going back to 1851 when the founders realized that Elliott Bay was a potentially new “New York Harbor” for the West Coast, or returning to 2009 with Seattle as the midpoint of a north-south, over 100-mile-long metropolitan area, our city’s location has been a preeminent determinant in making it the center of one of the most prosperous and economically viable metropolitan areas in the country.

In short, transportation is a key attribute to any economically viable region, yet our region’s traffic congestion has begun to hinder our economic viability.  Seattle-area traffic congestion ranked ninth worst in the nation last year, while we ranked only 15th in population.  Freight mobility has become a key issue for the region’s industrial sector..

Let’s face it.  No one has a crystal ball here – neither the dyed-in-the-wool surface-streets supporters, nor the diehard tunnel supporters.  Those in favor a streets-only solution believe that the consequent reduced capacity and increased congestion will somehow naturally regulate the traffic flow, weeding out that percentage of current motorists who could switch to transit and/or choose alternative routes or times.  Those of us in favor of the tunnel worry that the resulting traffic congestion and increased travel times may severely hamper our economic vitality.  The questions that occur to me as I contemplate the notion of severing one of our region’s transportation lifelines at the downtown Seattle choke point are the following:

·  If surface-street traffic congestion were to reach day-long gridlock conditions, as I fear, what ultimate effect would that have on freight mobility and the general movement of goods and services that serve our economic vitality?

·  In the face of a future of endless gridlock along the erstwhile Highway 99 corridor, would businesses related to the Port of Seattle and downtown Seattle locations, especially, seek other locations to base and/or conduct their business?  Would they accelerate the tide of industrial business loss from Seattle to the suburbs?

·  Would we gain the dubious distinction of becoming one the top-five worst metros for regional traffic congestion?

As an economic development professional, I can’t tell you how many times I’ve fielded inquiries from folks about the region’s infamous traffic congestion, so I can’t even imagine the perception we’d receive with even worse traffic.

And lastly, even if the city’s or region’s economic vitality would not be at any peril, the urban designer in me shivers at the potential future of downtown’s pedestrian environment with the majority of Highway 99′s vehicle traffic dumped onto our surface streets.  Today, especially in the p.m. peak hour(s), First, Fourth and Fifth avenues are at virtual gridlock.  And some of the steep side streets (especially where the larger office buildings are located) are even worse. It’s not uncommon to see vehicles wait through several full traffic-light cycles before advancing through a single intersection. Does anyone really think these streets can handle the majority of the existing Highway 99 traffic volumes?

I do not profess to know of all of the potential “enhancements” contemplated to accommodate this additional vehicle traffic, but the list may include the following: elimination of parking lanes, greater use of left (and even right) turn prohibitions, reduction in general-purpose lanes, and even, as Mayor Giuliani did in New York, prohibition of pedestrian crossings at key right-turn locations for vehicle traffic.

Even if these “enhancements” could somehow accommodate Highway 99′s traffic, my greatest fear would be the impact to pedestrians, including valuable shoppers, visitors and tourists!

Without curbside parking, pedestrians would no longer be “sheltered” from the impacts of passing vehicles (fumes, noise, splashing, even wind and vibration from larger trucks and buses). With multihour-long gridlock conditions, the cacophony of horns, screeching brakes, together with the fumes and odors of idling vehicles (especially diesel vehicles), would sharply sour the pedestrian’s street-side experience.  Pedestrian street crossing could be hampered.  Increased pedestrian-vehicle and pedestrian-bicycle collisions could ensue.  In summary, I’m quite worried that downtown Seattle would increasingly be shunned by any discretionary visitors (shoppers, tourists, day trippers), losing both its charm, character and economic vitality.

The tunnel opponents don’t want increased traffic on our streets either. But they are willing to risk the potential traffic and pedestrian impacts that I and others fear as a hedge against their greater fear of the tunnel’s cost and potential cost overruns.

We tunnel supporters, fully recognizing that the current proposal is not perfect, fear the impacts to our environment and our economy more than we fear the cost and potential cost overruns.  In fact, I would posit that the potential, permanent adverse economic impacts related to lost business if we do not build a tunnel would more than outstrip the one-time costs of the tunnel.

‘Build it — or else’

Friday, October 9th, 2009

I just posted about a phenomenon called job blackmail on Sightline’s Daily Score. Job blackmail happens when businesses threaten to leave the state or city because of environmental legislation. But megaprojects like the waterfront tunnel replacement for the viaduct also become the focus of what could be called megaproject blackmail. The blackmail machine was humming along the other day when Port of Seattle Commissioner Bill Bryant said that a s

Build more highway capacity? Not when our policies might finally be catching up to our rhetoric about saving the planet.
urface option without a tunnel would be “municipal suicide.” Wow. Fail to build the tunnel and Seattle will die.

So now Patrick Doherty, right here on SeattleScape, has offered yet another arm-waving warning that borders on what could be called “throughput blackmail.” If you don’t build the tunnel we’ll have to build another freeway somewhere else to handle all the traffic. Things will be even worse for climate change and there will be even more cars. Don’t build the tunnel and we’ll be destroying the environment. We’ll have to build even more highways. He writes:

If north-south circulation through the metro area is even further complicated by the removal of one of the region’s vital north-south highways, the I-605 promoters would essentially be offered more fuel for their fire. Constant gridlock on I-5 and the downtown Seattle streets, coupled with the congestion already on I-405, could lead to a ready-made argument in favor of efforts to pursue an I-605.

First of all, Vehicle Miles Traveled (VMT) and gasoline consumption are down, a fact that defies classic transporation planning. Part of this is attributable to last year’s wild increases in gasoline prices but it is also because people are making different choices that result in less driving. And gasoline prices are still volatile, causing people to get off the fossil-fuel rollercoaster.

Second, Doherty is comparing apples to oranges. Traffic volumes on the viaduct are nowhere near what they are on highways like I-5 and I-405. Those are interstate highways while the viaduct is a state highway. Why would we build a new high-capacity interstate freeway to deal with whatever capacity issues are created by a surface option? And remember, whatever problems with capacity that are created by a surface option are only periodic in nature, not constant.

Finally, our policies might finally be catching up to our high-flying rhetoric about saving the planet and being responsible stewards of our resources. If Mike McGinn is elected mayor of Seattle, for example, there is really a chance that the tail will stop wagging the dog. Like Portland and Seattle in the past, we might just resist the urge to spend billions of dollars on a new highway — one that has no exits downtown for all this throughput that Doherty is concerned about. And if Doherty is right about stoking the fires of I-605 there is no reason to believe we won’t be able to resist that too.

Out with the viaduct … in with I-605?

Thursday, October 1st, 2009

Replacing the viaduct with a surface streets could stall traffic downtown.
Replacing the viaduct with the surface-and-transit option could stall traffic downtown and encourage highway construction elsewhere.

The current mayoral race has placed the viaduct-replacement issue squarely back into the public limelight after most of us thought the issue had been put to bed, what with the governor’s and Legislature’s approval of the deep-bore tunnel option, as well as the accompanying funding commitments.

Both mayoral candidates have raised the issue of the viaduct replacement, with one issuing renewed and strident calls to reconsider the surface-and-transit option.

While the surface-and-transit option seems to be readily embraced by the nominally environmentally conscious activists, I’ve been wondering recently if their concerns may not be both overly simplistic and somewhat shortsighted, as well as possibly self-defeating.

We have heard and read much discussion in the media about the relative validity of arguments on both sides of the issue of whether the throughput of the existing Alaskan Way Viaduct can reasonably be reduced and/or otherwise accommodated by surface streets.  Activists promote the notion that greater and more attractive transit options will remove a certain amount of the vehicle traffic, leaving the remainder to be accommodated by an enhanced network of the existing surface streets.  Detractors protest that most of the throughput traffic is not transit-compatible and that diverting a huge volume of additional traffic onto the surface streets will create gridlock all day long on virtually all downtown Seattle streets.  These issues have been volleyed back and forth in the public debate ad nauseam, but there’s one additional concern that I have been discussing lately that I have not yet seen much coverage on.

Sharing the concern that simply cutting off one of our region’s major north-south highways will reduce downtown Seattle’s streets to a virtual standstill during most daylight hours, I wonder what impact the sharply exacerbated choke point of downtown Seattle within the Puget Sound area’s north-south regional transportation corridor would have on the pressure to consider future road-building in suburbia and exurbia?

You may remember that every few years pro-development forces on the Eastside raise the issue of the “Foothills Freeway,” or I-605, that would consist of a more distant loop around the easternmost edge of our metropolitan area.  If north-south circulation through the metro area is even further complicated by the removal of one of the region’s vital north-south highways, the I-605 promoters would essentially be offered more fuel for their fire.  Constant gridlock on I-5 and the downtown Seattle streets, coupled with the congestion already on I-405, could lead to a ready-made argument in favor of efforts to pursue an I-605.

And we need to ask: Even if some magical combination of street improvements and synchronized traffic signals could accommodate the existing Highway 99 flow through downtown (which I do not believe is possible), what about future growth?  Do the streets-and-transit promoters think the region will stop growing?

Now, in addition to the already oft-mentioned litany of environmental impacts from potentially gridlocked downtown Seattle streets (i.e., substantially increased vehicle idling and resulting air pollution, increased noise, and a markedly diminished pedestrian environment), we could add the potential consequence that the loss of the Highway 99 corridor through downtown Seattle could lead to the development of I-605.  Any environmentally conscious individual knows that the construction of a major new freeway in any metropolitan area literally paves the way to urbanization in its path.  Is that what we want virtually on the slopes of the Cascades?

Mayor Nickels, Gov. Gregoire and the state Legislature all recognized, and thankfully so, that the viaduct should not be replaced with a new modern-age monstrosity along our waterfront.  They also recognized that the vital transportation corridor that Highway 99 plays not only in Seattle, but in our entire region,  must be preserved.  The tunnel was and is the only option that accomplishes both noble objectives.  Environmental activists need to look beyond their Seattle-centric view of the world and see that Highway 99 is not just a Seattle problem, but a regionwide problem.  And the potential, long-term environmental impacts of the streets-and-transit option are far greater than the theoretical, short-term reduction of vehicle trips that that option is purported to create.

When you’re in a hole, start digging?

Tuesday, June 9th, 2009

Early this year I wrote a post based on a quote from John Maynard Keynes, the famous British economist of the last century. Keynes had an idea about filling a hole with bottles filled with money, covering the hole over with dirt and then selling permits to dig out the bottles. His argument was that during an economic downturn the best thing was to spend, even if the spending seemed to contradict common sense.

Last week I wrote about the falling rate of vehicle miles traveled (VMT) in the United States and the Northwest. The post goes into a bit of detail about the numbers and asks the question, “Why invest huge dollars in capital infrastructure for new ways to carry cars?”

It’s far from certain what the downturn in VMT means. Part of it is attributable to last year’s price spike in oil and gas prices. But when you look at gasoline consumption (down), VMT (down) and car sales (down) you can’t help but wonder why we’re digging a big hole along the waterfront and filling it with cars. Does a tunnel that will cost billions of dollars still make sense?

Could the possibility that we are significantly changing our driving habits make Keynes’ idea more attractive?

The case for the deep bore tunnel

Friday, April 3rd, 2009

Right now, a drill rig is outside on First Avenue, testing soil conditions for the deep bore tunnel.  The plan is far from certain obviously, but progress of any kind is exciting! Meanwhile it’s working its way through the legislature. This is a good time to hit some key points and dispel some misconceptions.

The tunnel would have more capacity than the current tunnel, not less. The same two lanes each way, plus breakdown lanes that avoid backups. The missing third lane is replaced by people exiting before Downtown rather than in Downtown.

It might save money vs. the alternatives despite costing more. What’s the price of several years of massive disruption with the aerial or shallow-cut alternatives? How many stores would fail, offices would move away, residents wouldn’t move in, and tourists wouldn’t come? (not to mention the effect of being next to another eyesore for another lifetime)

It’s realistic about traffic. The surface-option supporters have great motives. But they’re mistaken. Better transit would reduce trips somewhat, and many drivers might simply move. But tens of thousands of cars per day would be added to surface streets. Political concessions to the driving public would turn Downtown streets into highways focused on throughput rather than those who work, live, or shop here. For example, the PI instantly suggested fewer pedestrian crossings when the original surface option was shortlisted.

A tunnel helps Downtown function. Downtown Seattle is the dominant economic engine of our region, and plays an important role for most locals, whether working here, attending events, or just getting through. It’s tough to concentrate so much activity in a narrow area, but we do pretty well because of tunnels, including the BN tunnel, the transit tunnel, the existing 99 tunnel, and even the covered part of I-5. Downtown is growing. Putting 99 underground gets the through traffic through (without encouraging more driving) while allowing Downtown to be what it can be.

It avoids another 50-year mistake. Cities that succeed in the coming decades will have quality of life (as well as functionality; see above). The central waterfront and our surface streets are essential parts of that.

I think it’ll pass. The plan mixes best-case attributes and lacks strong anti constituencies. The ”view while driving” crowd seems numerous but they ought to watch the road and will look foolish if the initiative goes anywhere. Through-drivers get their freeway (without more lanes to encourage more driving), Interbay gets a wider Alaskan Way and non-jammed streets, transit users end up with more transit (even if indirectly), Downtown people get our great waterfront and hold on to our walkability, and locals shoulder the difference in cost, which is a manageable figure.

PS, did everyone notice that Sound Transit just bid two two tunnel sections for massively less than projected?  They came in 23 percent and 34 percent under Sound Transit’s estimates, at a combined $329 million rather than $425 million. This is encouraging for the deep bore 99!

Seattle gets another chance to sell density

Monday, March 16th, 2009
Stay classy, Seattle.
Seattle hasn’t done a good enough job convincing its residents of the pluses of density, and the current slowdown will give the city a chance to try again, Denny Onslow of Harbor Properties said Friday at a CityClub luncheon that explored the impacts Seattle’s sluggish economy could have on livability.

Onslow and other panelists at the luncheon said the current downturn will give the city a chance to rethink some its growth and density regulations, like how much parking it requires, and where and when civic infrastructure should be built. And that might help single-family heavy Seattle to see that denser development in their neighborhoods comes with livability improvements for them, too.

“There’s a lot of good things that can come when density comes,”Onslow said.

“The problem of people wanting to live here is a good one,” agreed Michael McGinn with the Seattle Great City Initiative. “I think we’re smart enough to build smart places, we just need to do it.”

Justin Carder, president of the Capitol Hill Community Council, said even proponents of density have had a hard time stomaching what’s happened to certain sites, like the vacant lot that used to house Bus Stop, Manray and Pony.

“The ideals of density are very popular with the people of Capitol Hill,” Carder said. ”It’s the specifics that they take issue with.”

McGinn said too often, infrastructure is an afterthought to buildings, and it should happen the other way around. Onslow said that is especially true of where the city chooses to build transit corridors.

Seattle needs to think ahead about what its civic infrastructure should look like and let those priorities inform regional decisions, McGinn said. For example, officials should not cut bus service to fill budget holes. With Seattleites voting last year against a tunnel replacement for the viaduct, McGinn said the money now being earmarked to build a bored tunnel should be allocated elsewhere.

He said local government should also be doing more to become efficient, planning ahead so that utility and street improvements always happen at the same time.

“The way we currently live, we could do a helluva lot better,” McGinn said. “And we need to go there, immediately.”

Read the whole story here.

Seattle architect to study Aussie seawall design

Tuesday, March 3rd, 2009

AIA Seattle has just given its first Emerging Professionals travel scholarship to Mithun‘s Cristina Bump to study innovative seawall design in Australia and Canada.

Sydney's Botney Bay seawall
The $5,000 scholarship will pay for her travel and research. She’ll visit seawalls in Sydney, Melbourne and Vancouver,  exploring the impact alternative approaches have on urban development and natural habitat.

Bump
Bump plans to work with partners at the University of Washington, the city of Seattle and the U.S.  Army Corps of Engineers to develop a series of recommendations for Seattle’s seawall replacement. She will present her research through an exhibition and model at AIA Seattle’s gallery in late 2009.

The scholarship is funded by contributions by Seattle-area Fellows of the American Institute of Architects and AIA members.

Tunneling our way to recovery

Friday, January 9th, 2009

While reading about Obama’s plans to pull the economy out of a nose dive, I happened upon this quote from John Maynard Keynes:

“If the Treasury were to fill old bottles with bank-notes, bury them at suitable depths in disused coal-mines which are then filled up to the surface with town rubbish, and leave it to private enterprise on well-tried principles of laissez-faire to dig the notes up again (the right to do so being obtained, of course, by tendering for leases of the note-bearing territory), there need be no more unemployment and, with the help of repercussions, the real income of the community, and its capital wealth, would probably become a good deal greater than it actually is.”

How long will it be before local officials start touting the tunnel option as a way of boosting the local economy by creating jobs?  The trouble with Obama’s infrastructure plan is that it seems to significantly rely on projects like replacing the viaduct that we don’t need and shouldn’t build.

Now is the time for us to lean into the fact that automakers are facing a downturn in demand for their product.  Why would we keep building infrastructure for single occupancy vehicles?

So my half-serious proposal is we go forward with the tunnel option to replace the viaduct.  Once we’ve dug out the tunnel, we bury bottles with $100 bills, cover it back up and sell the rights to dig them up.  That way, we get the benefits without the downside of more infrastructure for something we are trying to discourage.  So grab a shovel, and let’s start digging!

Conflicted over viaduct options

Saturday, December 13th, 2008

The State narrowed the SR99 options down to two last week. Maybe that’s not the final word, but let’s assume it is for a moment.

I don’t like either of them. Both options have big problems. (On the other hand, wouldn’t a decision, good or bad, be a relief on some level?)

In some moods, the new-viaduct option even seems like the better of the two. Kinda leaning that way right now.

That’s not easy to admit. I was on the viaduct-over-my-dead-body bandwagon not long ago. Why build another view-blocking encouragement to driving too much? Why choose to make the same horrible decision that so many of us have regretted for decades?

A tunnel is clearly the best option. It handles most of the traffic, and it does it out of sight. But remember our assumption.

The one-way surface couplet is scary, though it has its benefits. For a few reasons.

For all the horrors of the current viaduct, it gets traffic off the streets, and makes Western and Alaskan pedestrian-friendly. We’re talking about turning both into high-volume throughways. Sort of like Western already is in Belltown, but worse.

The surface option assumes some traffic would go away as transit use grows, and as people make new decisions about where to live and work, telecommuting, etc. But it also assumes more traffic flows to I-5 and other surface streets. We also plan to accommodate more cars on our streets.

I don’t want Downtown Seattle to be a throughways! Let the through traffic stay on the two freeways, and let our surface streets focus on people and their own neighborhoods.

The emphasis on transit is fantastic. We should do that regardless. Taking it a step further, Seattle needs its own version of the Metro and Sound Transit bus improvements that are mostly suburban. A levy in the tens of millions per year would revolutionize inner-city transit.

If you’re concerned about the aerial option encouraging driving, rest assured that it won’t add capacity, and has fewer lanes than the current version, with the plan that Downtown commuters will exit sooner. Actually Downtown streets stand to suffer even in this scenario. It’s a decent balance.

Sometimes pragmatism and compromise gives you a better result than idealism.

P.S. North of Denny, it’s all positive. Anything is better than the mishmash of pedestrian barriers we have now, crossing Aurora, going north-south west of Aurora, etc.