Category Archives: Transportation

Should Arizona build a new Freeway to Ease Congestion?

 

By Dom Nozzi

March 17, 2017

Regarding the proposed $2 billion to TEMPORARILY save seconds or minutes by building the “Loop 202 South Mountain Freeway” in southern Phoenix AZ…

Will that $2 billion expenditure of public tax dollars be worth it.

After about 2-5 years, the congestion will be worse (not the best way to spend $2 billion public dollars). Not MIGHT BE worse. It WILL be worse. Adding capacity/widening Carmageddon highway(which often destroys low-income areas or areas lived in by those without political power) is pretty much the worst thing that can be done.

By contrast, one of the more effective tools is a road/highway toll.

In general, since it tends not to be politically feasible to apply a toll, the best options are to realize that congestion is inevitable (a sign of a healthy place people want to be in), and to create ways to avoid the congestion: close-in housing/jobs/shopping, connected streets, grade-separated transit, etc.

The new highway is the same old tactic America has tried to solve congestion for the past century. Every one of those unimaginably expensive efforts has failed. Every one.

Oops.

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Boulder, Colorado Traffic Safety is Ineffective and Behind the Times

 

By Dom Nozzi

October 11, 2016

Every few years for about 80 years, Boulder and pretty much every other city in the US “redoubles its efforts” to engage in more education and enforcement to promote bicycle and pedestrian safety.

At best, such efforts have had marginal benefits.

After 80 years of “redoubling our efforts,” Boulder’s streets are more dangerous than ever.

In my view, these endlessly repeated campaigns are largely a waste of time and money (except to show symbolic support for political reasons), and the very minor benefits diminish each time we implement these campaigns (the dilemma of diminishing 3556802_origreturns). Indeed, such ineffective and repeated campaigns may be worse than a waste of time, as they can distract the City from engaging in pursuing meaningful strategies. Strategies such as retrofitting streets for slower and more attentive car travel, reducing the size of roads and parking lots, significantly increasing the number of bicyclists and pedestrians by removing motorist subsidies and making community development more compact.

Nothing else comes remotely close to being as effective as these tactics in increasing motorist attentiveness, slowing down motorists, and growing the number of bicyclists and pedestrians. I am ashamed of how much Boulder has delayed doing these things – particularly in the face of the many recent traffic fatalities and the plateauing of the levels of bicycling, walking, and transit use.

If it were up to me, Boulder would forego a number of expensive, big-ticket “safety” projects in the pipeline right now (which I believe do almost nothing to improve safety) and divert that money to effective tactics I mention above.

And start doing that immediately.

Shame on Boulder for dragging its feet and being so far behind the times regarding redesigning our streets effectively. Shame on Boulder for thinking it can just give up on trying to calm larger roads and monster intersections. For thinking that it is a good idea to create an alternative (“separate but equal”?) off-street path system for cyclists – a system that will never allow commuter cyclists to reach more than a tiny fraction of destinations cyclists have a right to get to by bike.

 

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Filed under Bicycling, Road Diet, Transportation, Walking

Is Boulder, Colorado in Danger of Becoming Too Dense?

By Dom Nozzi

March 9, 2017

I hear it all the time as a resident of Boulder, Colorado: “Boulder is too dense!”

I beg to differ.

I support Boulder’s long-standing objectives, such as reducing the city carbon footprint (to ease global warming), reducing noise pollution, improving affordability, increasing the number of trips made by foot or bike or transit, slowing tax increases, ensuring the City has the fiscal capacity to engage in needed/ongoing maintenance of our infrastructure, protecting environmentally sensitive outlying areas from suburban development, reducing traffic injuries and deaths (in part by designing streets to be slower speed and obligate motorists to be more attentive), promoting small retail shops and discouraging large retail shops, encouraging diversity and creativity, improving public health, and retaining a lovable character rather than an Anywhere USA character.

Each of these worthy objectives are furthered by more compact (dense) development.

Unfortunately, despite the conventional wisdom, Boulder is actually quite dispersed. Shockingly so.

Indeed, Boulder is so extremely low-density suburban that if we don’t become more compact and add a lot more housing, we will continue to undermine each of the objectives I list here.

Besides the low density and short-statured nature of development I have observed in Boulder, there is another element that strongly signals that Boulder is suburban in character. sprawl
Christopher Leinberger has pointed out that in compact, walkable neighborhoods, “more is better.” That is, new, more compact development tends to be welcomed because it typically improves the quality of life of those living a walkable lifestyle (more things to walk to, for example). By contrast, says Leinberger, in a drivable suburban neighborhood, “more is less.” In such a setting, new and more compact development tends to be detrimental to the drivable quality of life of residents (roads are more congested and parking is more scarce, for example).

For decades, Boulder has had a near consensus that “more is less,” which is a strong signal that Boulder is a drivable suburban community. Indeed, stopping development – or, if not possible, at least minimizing the density of new development — tends to be the be all and end all of protecting or improving quality of life in Boulder.

Our very low-density, dispersed suburban character means that Boulder’s per capita environmental impact is, ironically, very large (being “green” means far more than engaging in curbside recycling or driving a Prius). Dispersed land use patterns found in Boulder are unsustainable, very environmentally destructive, and ensure that nearly all trips in Boulder will be made by motor vehicle.

There is a growing desire for compact, walkable, town center housing — particularly with the Millennial generation — yet Boulder provides very little if any of that sort of housing. Demand for such housing is substantially higher than the supply of it. Which severely amplifies the affordable housing crisis in Boulder.

Sustainability is far out of reach for Boulder unless we provide a lot more compact, walkable housing.

In sum, I think Boulder is quite far from being “too dense.” So far that a “too dense” Boulder will not happen in our lifetimes — if ever. Indeed, it seems to me that Boulder’s biggest concern should be that we are too dispersed.

I previously wrote about why I believe so many people in Boulder (like in so many other American communities) believe their community is “too dense,” despite the obvious signs I cite above.

It is enormously ironic that a great many Boulder residents — not to mention the millions worldwide — love the great historic cities and towns of Europe so much that they happily spend huge sums of money to visit such towns on a regular basis. Nearly all of us love Copenhagen. We adore Amsterdam. We are charmed by Perugia. We are delighted by Dubrovnik. We cannot get enough of Granada.

Yet each of these celebrated cities are far more compact – far more dense – than Boulder.

Why this disconnect?

I believe there are three important reasons. First, the contemporary modernist architectural paradigm we have been saddled with for several decades has thrown the inherently lovable 315-0722092524-NSA-building-and-parking-lotand timeless traditional building design into the waste can in favor of repellent, “innovative,” look-at-me design. Citizens are thereby conditioned to equate new compact development with hideous buildings. Second, local zoning regulations in cities such as Boulder have made lovable, human-scaled design illegal by requiring excessive setbacks, excessive car parking, and excessive private open space. Third, nearly all citizens live car-dependent lifestyles. And because their cars consume such an enormous amount of space, motorists are compelled to fear and oppose town design that they otherwise love as tourists. They have, in essence, become their own enemies by striving to improve their life as motorists (equating quality of life with easy parking and free-flowing traffic), not realizing that doing so is ruinous to a healthy city and a lovable quality of life.

For much of our history up until the 20th Century, citizens welcomed and celebrated new development in their communities because they knew that almost invariably, the new development would improve the quality of life in their community.  Steve Belmont has informed us that a densifying city is a sign of city health. But that welcoming of new development has been understandably inverted into a widespread opposition to new modern-architecture-Ronchamp-Chapeldevelopment, largely due to the modernist architectural paradigm, local car-friendly development regulations, and car-dependent citizens who have become cheerleaders for their cars rather than for themselves, their family, and their neighbors.

Boulder can comfortably house a great many more newcomers, and if our land development regulations are properly crafted to insist that new development be walkable, our community will be greatly improved in each of the ways I list above.

For the record, I generally dislike buildings taller than 5 stories (the limit set by city charter), but know that the city can be much better and provide a lot more housing by allowing buildings to be 3-5 stories in appropriate locations.

Note, too, that I do not believe that EVERYONE should be obligated to live in more compact, walkable housing. A community should always provide sufficient housing for the full range of lifestyle choices: walkable town center, drivable suburban, and rural.

Unfortunately, drivable suburban is about the only lifestyle option offered in Boulder. Because we have made the cities we love impossible to build.

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Filed under Politics, Sprawl, Suburbia, Transportation, Urban Design, Walking

Redeveloping the Boulder Community Hospital Site in Boulder, Colorado

By Dom Nozzi

January 27, 2017

The most important task of the urbanist is controlling size. – David Mohney

As owners of the Boulder Community Hospital (BCH) site bounded by Broadway, Alpine, 9th Street, and Balsam, the City of Boulder has a golden opportunity to demonstrate the preferred vision for creating compact, walkable development in appropriate locations within Boulder.

For too long, citizens have rightly attacked many new projects in Boulder. We now have a chance to show how to do it right.

The following is one man’s opinion about how we can do it right at the BCH site.

First Determine the Context

Our very first task in establishing a “How to Do It Right” vision is to determine the “context” of the site. Where is it located in the community? Is it a walkable town center? A drivable suburb? A farmable rural area? Only when we answer that question are we able to know which design tactics are appropriate and which are inappropriate. For example, if we are in a suburban context, it is inappropriate to insert shops and offices within the neighborhood, or use small building setbacks. However, if we are in a town center context, those design tactics are entirely appropriate and desirable.

transect

In the case of the BCH site, it is generally agreed by the City that the context is walkable town center (what is called “Urban Center Zone” in the above figure). It is now important, given that, to ensure that the design of the site is compatible with that vision.

How do we do that?

A Form-Based Code

Perhaps the most effective way to do that is to establish what is called a “form-based code (FBC)” or a “subcommunity overlay plan,” which was successfully used to guide the development of the Holiday neighborhood in North Boulder.

The FBC or plan emphasizes the importance of “form” by specifying the appropriate and desirable building placements, street dimensions, and building materials. This differs from the conventional “use-based” zoning codes, which over-emphasize the importance of uses within a building, and only specify designs and dimensions that are prohibited, rather than specifying what is desired by the community.

As Andres Duany notes[1]

…A FBC protects us from the tendency of modern designers to disregard timeless design principles in favor of “anything goes.” An “anything goes” ideology too often leads to “kitschy” buildings, unwalkable streets, and other aspects of low-quality urban design.

…A FBC protects us from the whims of boards and committees.

…A FBC is necessary so that the “various professions that affect urbanism will act with unity of purpose.” Without integrated codes, architects, civil engineers and landscape architects can undermine each others’ intentions by suboptimizing.

…A FBC is necessary because without it, buildings and streets are “shaped not by urban designers but by fire marshals, civil engineers, poverty advocates, market experts, accessibility standards, materials suppliers and liability attorneys” – none of whom tend to know or care about urban design.

…A FBC is necessary because “unguided neighborhood design tends, not to vitality, but to socioeconomic monocultures.” The wealthy, the middle-class, and the poor segregate from each other, as do shops and restaurants, offices, and manufacturing. A FBC can ensure a level of diversity without which walkability wilts.

…A FBC is necessary to reign in the tendency of contemporary architects to design “look at me” buildings that disrupt the urban fabric.

…A FBC is necessary to ensure that locally appropriate, traditional design is employed, rather than “Anywhere USA” design.

…A FBC is needed to protect against the tendency to suburbanize places that are intended to provide compact, walkable urbanism.

…A FBC is necessary to protect against the tendency to over-use greenery in inappropriate places such as walkable town centers. In particular, grass areas tend to be inappropriate in walkable centers. Over-using greenery is a common mistake that tends to undermine walkability.

…A FBC is needed because codes “can compensate for deficient professional training. Because schools continue to educate architects towards self-expression rather than towards context, to individual building rather than to the whole.”

We can craft a FBC in hands-on workshops driven by citizens and urban designers. When crafting a FBC, such workshops are called “charrettes,” where professional urban designers provide attendees with a one- or multi-day training course in the time-tested design principles of creating a successful town center, suburb, or rural area. Armed with such knowledge, citizens and designers craft a FBC that is appropriate for the context and community values.

Designing the BCH Site

The following are my own individual suggestions for a FBC that would employ time-tested principles for creating a successful walkable, lovable, charming town center.

The overall layout is compact and walkable. For example, building setbacks are human-scaled and quite modest. Private front and backyards are similarly small in size. Public parks are smaller pocket parks rather than larger, suburban, fields of grass (note that abundant grass and athletic fields are provided adjacent to the west of the BCH site). Some of these parks are relatively small public squares formed by buildings that face the square on all four sides. If surface parking is unavoidable at the site (and I would very strongly urge against such parking), the parking should be designed as a public square that occasionally accommodates parked cars. Block sizes are relatively small, based on a street grid, and include many intersections. Internal streets and alleys are plentiful and narrow enough to obligate slower speed, more attentive driving. Give-way streets, slow streets, woonerfs, and walking streets are all appropriate and desirable.

Internal streets should have a spacing of at least one-to-one (or two-to-one or one-to-two) ratio of flanking building height to street width. (Pearl Street Mall has a ratio that fall within the ranges below).

ratio

To promote vibrancy and safety, the City should encourage 24/7 activity by discouraging weekday businesses, such as offices, that close after 5. Businesses that close after 5 create night-time dead zones.

Service vehicles that may use streets, such as buses, delivery vehicles, or fire trucks should be small enough that they do not obligate the establishment of overly large streets or intersections. When such vehicles cannot be relatively small, it is appropriate for such vehicles to be obligated to move more slowly and carefully. Dimensions, in other words, should be human-scaled, not tractor-trailer-scaled.

If feasible, Goose Creek under the BCH site should be daylighted. It would be appropriate to create a bustling, miniature version of the San Antonio Riverwalk, with homes and shops lining the creek. At a minimum, a daylighted creek needs to be relatively permeable with several pedestrian crossings along the way to promote walkability. Since the BCH site is in a compact, walkable zone, wide suburban greenspaces flanking the creek would not be appropriate.

Alignments are more formal and rectilinear. Internal streets, sidewalks and alleys have a straight rather than curvilinear (suburban) trajectory. Street trees along a block face are of the same species (or at least have similar size and shape), have a large enough canopy to shade streets, and should be formally aligned in picturesque straight lines rather than suburban clumps. Building placement is square to streets and squares rather than rotated (to avoid “train wreck” alignment more appropriate for suburbs). Buildings that are rotated rather than parallel to streets and squares are unable to form comfortable spaces.

Streets deploy square curbs and gutters. Stormwater requirements should be relaxed at the site to prevent unwalkable oversizing of facilities. Streets are flanked by sidewalks. Signs used by businesses are kept relatively small in size. For human scale, visual appeal, and protection from weather, shops along the street are encouraged to use canopies, colonnades, arcades, and balconies. When feasible, civic buildings or other structures with strong verticality are used to terminate street vistas.

Turn lanes and slip lanes in streets are not allowed on the site.

Street lights are relatively short in height to create a romantic pedestrian ambiance and signal to motorists that they are in a slow-speed environment. They are full cut-off to avoid light pollution.

Buildings are clad in context-appropriate brick, stone, and wood. Matching the timeless traditional styles of the nearby Mapleton Hill neighborhood is desirable. Building height limit regulations exempt pitched roofs above the top floor of buildings to encourage pitched roof form and discourage the blocky nature of flat roofs. Obelisks and clock towers are also exempt from height limits.

Buildings taller than five stories should be discouraged for a number of reasons. First, they tend to be overwhelming to pedestrian/human scale. Second, they tend to induce excessive amounts of car parking. Finally, if we assume that the demand for floor space is finite at the BCH site, it is much preferable from the standpoint of walkability for there to be, say, 10 buildings that are 5 stories in height rather than 5 buildings that are 10 stories in height.

Floor-area-ratio (FAR) is a measure of how much square footage can be built on a given piece of land. A relatively high FAR is supportive of walking, transit, and bicycling. In commercial areas, FAR should be at least 1.0.[2]  Richard Untermann, a well-known urban designer, calls for FARs of 2.0-3.0 in town centers.[3]

FAR

Buildings along the street are often graced with front porches to promote sociability, citizen surveillance, and visual desirability.

Relatively small offices and retail shops are sensitively interspersed within the neighborhood. For additional walkable access to shops and services, Broadway to the west of the BCH site should incorporate designs which make the crossing more safe and permeable. Narrowing crossing distances and various slow-speed treatments can effectively achieve increased permeability.

First floors of buildings along sidewalks provide ample windows. First floors of buildings are not appropriate places for the parking of cars.

Given the affordable housing crisis in Boulder, ample affordable housing must be provided. Residences above shops are desirable, as are accessory dwelling units and co-ops. An important element in providing affordable housing will be the fact that the inclusion of shops, services and offices within the neighborhood, residences will be able to allocate larger proportions of household money to their homes and less to car ownership and maintenance (since the household would be able to shed cars by owning, say, one car instead of two, or two instead of three).

An important way to make housing more affordable is to unbundle the price of parking for residences from the price of housing. Available parking is modest in quantity and hidden away from the street. Parking is space efficient because shared parking is emphasized and tends to be either on-street or within stacked parking garages. No parking is allowed to abut streets, unless the parking is on-street, or in a stacked garage wrapped with retail and services along the street.

The BCH site is exempted from required parking, and is also exempt from landscaping requirements.

Unbundling the price of parking and reducing the land devoted to parking are both important ways to create more affordable housing.

The Washington Village neighborhood project a few blocks to the north on Broadway and Cedar is a good model for appropriately compact and walkable spacing at the BCH site.

Let’s not squander this important opportunity. Let’s insist that we build a neighborhood that fits the pattern of walkable Siena, Italy, not drivable Phoenix Arizona.

phoenix

 

References

[1] “Why We Code,” Sky Studio. http://www.studiosky.co/blog/why-we-code.html?utm_content=bufferdde8c&utm_medium=social&utm_source=facebook.com&utm_campaign=buffer

[2] SNO-TRAN. Creating Transportation Choices Through Zoning: A Guide for Snohomish County Communities. Washington State (October 1994)

[3] Untermann, Richard. (1984). Accomodating the Pedestrian, pg190.

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Filed under Transportation, Urban Design, Walking

The Problem of Gigantism

By Dom Nozzi

January 13, 2017

Gigantism, in my opinion, is a HUUUUUGE problem in America.

Enormous roads, enormous setbacks, enormous (and improperly located) parking lots, enormous (and improperly located) stormwater basins, enormous distances between destinations, enormous road intersections, enormous subdivisions, enormously tall street lights, enormous signs, enormous retail areas.Monster road intersection

The enormity of the American land use pattern is obvious when one walks the historic center of so many European cities and towns. My recent visit to Tuscany with my significant other was, once again, so saddening and maddening because the streets we walked were so stunningly lovable, charming, and romantic. Americans have thrown all of that charm away in our car-happy world.

Not only is it impossible to love most all of urban America. It is also, as Charles Marohn points out so well, impossible to afford to maintain. A double whammy of unsustainability. And extreme frustration in my career as a town planner who toiling for decades to try to nudge our society toward slowing down our ruinous love affair with making the world wonderful for car travel. And finding that even most smart people in America strongly oppose going back to the timeless way of building for people instead of cars.

It is said that dinosaurs went extinct due in large part to gigantism. I believe the same fate is likely for America, unless our society wakes up and realizes we are way better off in so many ways if we get back to building our world at the (walkable) human scale.

A friend asked me recently what I would do if I were in charge, had a blank slate, and could design a community any way I desired.

If I had such an opportunity, my community would be much more compact and human-scaled. One can walk historic town centers in Europe for models of what I speak of here.

WAY less “open space” for cars is essential.

I would ratchet down our extreme (and artificial) auto-centric value system by making roads and parking and gasoline purchases and car buying directly paid for much more based on USER FEES rather than having all of society pay for happy cars via such things as sales taxes, property taxes, and income taxes.

In other words, making our world much more fair and equitable.

We have over-used and over-provided for car travel and car housing in large part because the cost to do so is mostly externalized to society rather than directly paid for via user fees. Eventually — maybe not in our lifetimes? — car travel will be mostly paid for via user fees and externalized costs will be more internalized. Car travel will therefore become much more expensive, signaling us to cut down on our over-reliance on it.

When that happens, we will inevitably see the re-emergence of the lovable, human-scaled world we once had. Fortunately, we are starting to see car travel becoming much more expensive and unaffordable — even though it continues to fail to be user-fee based.

And we are seeing the Millennial generation showing much more interest in compact town center living and much less interest in being car happy.

It is way past time for our society to a people-happy rather than car-happy world.

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Nudging Not Commanding

 

By Dom Nozzi

January 14, 2017

I recently participated in a Facebook discussion regarding the huge environmental impact of air travel.

Many people rightly have serious concerns about the enormous environmental impacts of flying. Many are so concerned that they advocate a strict prohibition on such travel.

Since reading the book Nudge, by Richard Thaler (2009), however, I have become a much stronger advocate of “nudging” people towards socially desirable objectives. Nudging retains choice for those who must have that choice, but makes it more difficult or costly to opt for socially undesirable options (such as less obligatory behavior including recreational travel).

Thaler cites the example of elevator and stairs location: the elevator should be lesopen-silver-elevators visible and hidden away when you walk into a front door. The stairs, which are more socially desirable than an elevator, should be right at the front door.

Command economies (think prohibition laws in the Soviet Union) ignore the fact that it is necessary to give some people the choice to do certain things, and the Soviet example shows that commanding instead of nudging is not particularly sustainable or compatible with human nature and human needs.

I say these things as someone with an environmental science degree, and as someone who has lived life with a very, very small ecological footprint (never owned a car, no kids, low-meat diet, etc.).

It HAS been very tempting to me to outlaw things that are environmentally harmful. But I have come to learn that as painful as it might be, we must allow for choices.

We just need to make less desirable choices less easy.

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Filed under Economics, Environment, Politics, Transportation

A Quality Future for Boulder CO Means Something Vastly Different from What No-Growthers Seek

 

By Dom Nozzi

January 8, 2017

The great irony of those in Boulder, Colorado who seek to protect the low-density character of neighborhoods (and to allegedly protect the “small town charm” of Boulder) is that by following the tactics recommended by too many “no-growthers,” Boulder will continue to take the Anywhere USA path that so many other American cities have taken (and continue to take).

Fighting against compact development is a recipe for keeping this city from becoming more walkable, charming, and human scaled. Such a fight will make it more likely that our future will be more car-dependent, more isolated, less walkable, more filled with surface parking lots, and less affordable (due to a growing lack of travel choices). Much of Boulder was built in an era of failed community design ideas that are unsustainable. Many of those who seek to “protect” neighborhoods are those who like the privatopia of suburbs and don’t like cities, and therefore don’t understand or appreciate those elements that make for healthy cities: slow speeds, human scale, compact development, agglomeration economies, diversity, conviviality, and choices.

Such advocates, instead, ruinously seem to believe that free-flowing and high speed traffic and easy car parking are the keys to quality of life. Actually, such objectives are toxic to a 51df393d218c6-imagehealthy city because they undermine the elements I list above.

The lifestyle of those who live in low-density Boulder neighborhoods compels them to fight for a halt to population growth, fight to minimize density and building heights, fight to oppose traffic calming and modest street and parking allocations, and fight to oppose mixed use.

Why?

Because fighting for those things helps protect their ability to travel easily by car. Because their neighborhood design obligates them to make most or all trips by car, they must fight for these things to protect their suburban lifestyle. Car travel becomes highly inconvenient when a community is more compact and slow speed. Densities over 2 or 3 units per acre make car travel much more inconvenient.

Conversely, densities below 3 or 4 units per acre make walking, bicycling, and transit nearly impossible.

It is therefore easy to understand why so many in suburban Boulder have concluded that easy driving and parking are equivalent to quality of life. Tragically, easy driving and parking are enemies of a quality city.

It is important to note, despite the unfair, inflammatory falsehoods we often have thrown at us urbanists, that this is NOT a call to make all neighborhoods in Boulder more compact. It IS a plea to recognize that for too much of Boulder’s history, the only acceptable form of development is high speed, car-happy suburban.

And that it is NEVER acceptable for there to be slow speed, compact walkable development.

Anywhere.

The result is a vast oversupply of drivable suburban development — which has no future, by the way — and a substantial undersupply of compact walkable development. Indeed, I would be hard-pressed to point to ANY compact development in Boulder. Because there is a big and growing demand for a walkable lifestyle — particularly among the younger generations — the price of such housing is skyrocketing (there are other reasons, but this one is substantial).

Boulder must do what it can to provide a larger supply of walkable housing — in appropriate locations.

Not doing so will lead to a grim, more costly future for Boulder.

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