Showing posts with label freeway. Show all posts
Showing posts with label freeway. Show all posts

Monday, April 12, 2010

Welcoming Division Back to San Francisco

Welcome to San Francisco

If I said it was the ugliest place in San Francisco, you'd be hard-pressed to prove me wrong. It's the aquamarine elephant in the room that's left standing whenever we celebrate the demolition of the Central Freeway. In fact, that stub of a freeway was only partially torn down, only as far as Market Street. And, today, the place where the freeway starts is where the urban renaissance of Hayes Valley ends.

Believe it or not there's a street under there, a street with more problems than just the shadows and noise of the elevated structure. Duboce Avenue, 13th and Division Streets have been combined into a six-lane expressway with narrow, incomplete sidewalks, cyclone fences and driveways, and piles of illegally dumped garbage. If this place is ever going to be a healthy thread in San Francisco's urban fabric, this corridor will need to become a walkable, livable street.

Tuesday, October 6, 2009

A Vision for the Future

There's an interesting model of downtown SF at SPUR's new building on Mission Street. The model shows the proposed or approved new development in the Transbay and Rincon Hill areas.

But upon closer inspection, the elevated freeway to and from the Bay Bridge has been removed Southwest of 4th Street. Now that's 'urban renewal' I can get behind!

Tuesday, April 14, 2009

Tear Down This Wall

In a thinly-veiled attempt to make me love it, the Transbay Blog has a great article on how to get rid of the Central Skyway. That makes the Transbay Blog the latest voice calling for San Francisco to finish the good job it started when we knocked down the elevated structure North of Market Street.

I've called for this, and Streetsblog SF reported that the MTA has agreed to consider studying alternatives to the elevated skyway at the urging of superheroesque Tom Radulovich. Well, Transbay blog has an alternative worth considering.

I've got my own fantasy map that I'm working on polishing up, and I'm sure there are smart folks out there with their own great ideas for this miserable waste of space.

This is an issue that's important to me, and I hope it takes off!

Friday, April 10, 2009

Pedestrianism Vol. 4


Pedestrianism Vol. 4 from Josh Bingham

This edition is HD by Vimeo's standards. I recommend viewing it full-screen with HD on and scaling off.

This walk circumnavigates one of San Francisco's ugliest warts: the tangled maze of on- and off-ramps that connect Potrero Avenue and Cesar Chavez Street to Highway 101 while separating the Mission and Bayview Districts for car-free residents. Other liveable streets advocates have taken to calling this monstrosity the "hairball," and I'll use that term here as well since my own name for it is unprintable.

We start at Muni's Potrero trolly yard and maintenance facility, recipient of some much-needed Federal stimulus funds and end at the Flowercraft garden center on Bayshore Boulevard. Since the hairball cuts off the most direct route, down Potrero, across C Chav and on to Bayshore, I cut across 101 at the 18th Street Pedestrian bridge and over Potrero Hill into the Islais Creek industrial area of Bayview.

Things to note in order of appearance:

  • The steep slope of Mariposa between Potrero and Utah Street results in steps for a sidewalk.
  • 18th Street pedestrian bridge
  • Potrero Hill community garden is planted on former Caltrans land
  • McKinley Square park with its formal Victorian lawn and panoramic views
  • The section of Vermont Street adjacent to McKinley Square is curvier than Lombard, but far less famous
  • The lack of pedestrian crossings on C Chav, even east of the hairball, forces pedestrians to go out of their way around Kansas and Marin Streets, past the KOFY TV20 studios and Beronio Lumber
  • The Bayshore Boulevard traffic sewer with its merge turns and narrow sidewalks encourages motorists to drive recklessly. Note the failure to yield at 2:18
  • The Old Clam House is a San Francisco institution; a relic of the days when this area was wetlands surrounding Islais Creek
  • The old Whole Earth Access and Goodman's Lumber buildings. Locals remember these places fondly; the latter is the site of the ever-controversial and endlessly reincarnated proposed Big Box Home Center store

Friday, February 6, 2009

Connecting the Dots

Streetsblog SF continued today to earn its developing reputation as a leading champion of livable streets and catalyst for change in the city. Three articles on pedestrian issues in a row illustrate the problems we deal with and offer opportunities to make change for the better.

San Francisco Increasingly Dangerous for Pedestrians:
First in a series of stories focusing on ped safety in SF. Author Janel Sterbentz draws the connection between our most poorly-designed streets and a higher level of vehicle-pedestrian collisions. The map at right shows that pedestrians are more at risk along wide, multi-lane streets, especially one-way streets. Anybody who is in the habit of walking around this town can attest to the vulnerability of pedestrians along streets, like those South of Market, that have been designed to act like freeways.

MTA Board Agrees to Consider Studying Central Freeway Alternatives:
Hallelujah! This thing should never have been allowed to survive the turn-of-this-century demolition of its Northern segment. News that there is the world's slightest chance it may come down in my lifetime is exciting and unexpected. According to SB the MTA has agreed to consider studying alternatives to the godawful monstrosity as part of it's upcoming Eastern Neighborhoods Transportation Implementation Planning Study. It's far from a done deal, but thanks to Livable City executive director, elected BART board member and apparent superman Tom Radulovich it's one step closer.

The Great Streets Campaign Needs a Leader:
Wanted: SF's version of NYC DOT commissioner Janette Sadik-Khan; someone who will aggressively push for more complete streets and full compliance with City Charter Section 8A.115, our "Transit First" policy. Specifically, there's a job in it for you heading the SF Bicycle Coalition's new initiative, "The Great Streets Campaign."

Strong leadership from this campaign director and our elected officials, with even stronger support from the community and livable streets activists everywhere could bring about the removal of those elements of our streetscape that make SF the 4th most dangerous major city in the US for pedestrians, per capita. Yes we can!

Wednesday, January 28, 2009

If Traffic is Bad, And Freeways Cause Urban Traffic...

Why don't we remove the freeways?

Yesterday I pointed out a great article in Scientific American documenting the plain, simple reality that removing freeways improves traffic flow in urban areas. That article leads with the example of an elevated freeway in Seoul, Korea that was removed, and the improvement in traffic flow that resulted.

Reading up a little more, I found an excellent website devoted to real-world examples of urban freeways that have been nixed. The Preservation Institute of Berkeley, CA tells the whole story of the Cheonggye Freeway. From river to freeway and back again in less than half a century, the Cheonggye is a remarkable case, but freeway removal in cities around the world are strikingly similar.

Here in SF we have two good cases where freeways were closed and the sky remained firmly up. The Embarcadero and Central Freeways were removed after much hair-pulling and hand wringing, and replaced with surface streets that have proven to be wildly successful.


View Larger Map

Here's a little map of the scars across San Francisco caused by elevated freeways. Blue represents extant freeway, green represents those removed.

These monstrosities cut off neighborhoods and blight the area for blocks around. This map doesn't even highlight those traffic sewers that some of our city streets have been turned into in a vain effort to whisk people on and off these concrete octopuses. Streets like Alemany Blvd, San Jose Ave and Division St.

If we can see that these misguided structures cause tangible problems, and we know that removing them improves traffic flow while eliminating those problems, then why the hell don't we tear them all down?

Tuesday, January 27, 2009

Reality: Freeways Cause Traffic

The old-fashioned street grid is the best way to circulate auto, bicycle, and pedestrian traffic.

This makes sense to anyone who spends time in both grid-network areas as well as freeway/artery areas, and has begun to be accepted by more forward-thinking planners.

Now from no less reputable a source than Scientific American comes this article showing experimental and empirical evidence directly supporting this idea as well.
But in the 21st century, economic and environmental problems are bringing new scrutiny to the idea that limiting spaces for cars may move more people more efficiently.
As documented in Seoul, Boston and Montgomery, Alabama, the idea is that [gasp] wide arterial roads induce demand, which causes gridlock. Removing those expressways causes traffic to move more smoothly than it did before.
In the Boston example, Gastner’s team found that six possible road closures, including parts of Charles and Main streets, would reduce the delay under the selfish-driving scenario.
The article also documents positive results from conversion of divided rights of way to the "shared street" concept, or woonerf. In a woonerf, all modes of transportation are allowed on any part of the road, and traffic signals and lane markers are absent.
The idea is that the absence of traffic regulation forces drivers to take more responsibility for their actions. “The more uncomfortable the driver feels, the more he is forced to make eye contact on the street with pedestrians, other drivers and to intuitively go slower,” explains Chris Conway, a city engineer with Montgomery, Ala.
And finally, author Linda Baker gives props to SF for our parking maximums:
In San Francisco, for example, developers must restrict parking to a maximum of 7 percent of a building’s square footage, a negligible amount. Although downtown employment has increased, traffic congestion is actually declining, [Patrick] Seigard says. With fewer free spaces to park, drivers seem to be switching modes, relying more on mass transit, cycling and just plain walking.
Imagine that.

Friday, January 2, 2009

Congestion hooey?

Editor - As a former San Franciscan who now lives in the North Bay, my response to the proposed "congestion pricing" schemes is: "Are you kidding?"

For a city that fiscally depends on outsiders - tourists, commuters, shoppers and diners - congestion pricing is a really stupid idea. There is no good public transportation to get to San Francisco from the North Bay unless you are commuting to the downtown business district. Outside commute hours, the ferries and buses run infrequently, and after a late dinner, there is no way to get back to Marin. Even finding a taxi is practically impossible.

In addition, those proposing this idea might look at a map. Most of the time I'm driving through the "ring" I'm not driving to San Francisco, I'm driving through it to get to the airport or somewhere else on the Peninsula. Want to relieve congestion? Build a freeway from the Golden Gate Bridge to the intersection of 101 and 280 just south of Parkmerced, and you won't have to worry about us again.

SARAH CAMERON LERER

Inverness

Letters to the Editor, SF Chronicle, January 1, 2009

No, Ms. Lerer, we're not kidding. San Francisco, specifically the older, denser northeaster corner of the city, has been suffering under the burden of motor vehicle congestion for decades!

It's difficult to know where to begin tearing this letter apart, but her specific arguments don't even weigh against the specific plan for downtown San Francisco. She is worried that the only public transit options from the North Bay take you to the downtown, and are only reliable during commute hours. Fortunately, this is the only part of town, and the only time of day that will be affected by the congestion fee.

She also laments that the fee is unfair because she's only passing through the congestion zone, not visiting it. She even suggests that we build a freeway through our city to get her to I-280. This is exactly the kind of trip that worsens congestion without providing any benefits to the local economy, and it's exactly what congestion pricing is designed to prevent or move to off-peak hours.

If you want to push one of my hot buttons, try suggesting that the elevated freeways that scar our city are a good thing, or that we need more of them. Building a freeway the entire length of San Francisco won't mean we never have to worry about those cars or the people in them ever again, it will mean blight, crime, higher rates of asthma, heart disease and a slew of the other unarguable effects of high vehicle traffic volumes. What's more, California Highway 1 already runs the entire route she wants, via Park Presidio Blvd and 19th Ave. The status quo along that gem of a roadway is unacceptable exactly because it's overused by Ms. Lerer and her ilk.

The city of San Francisco doesn't owe suburban residents a free ride through our neighborhoods. Congestion pricing is not punitive, it offsets real costs that the city has been shouldering all these years. The plan is sound and serves to allow drivers, cyclists, and those who walk and take the bus to make more well-informed economic decisions about their transportation options.