Tag Archives: safety

What it takes to approach a rate of zero traffic fatalities

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An expert discusses Sweden’s efforts to get to zero traffic fatalities:

But in Vision Zero, the accident is not the major problem. The problem is that people get killed or seriously injured. And the reason that people get serious injuries is mainly because people have a certain threshold where we can tolerate external violence, kinetic energy. And we know quite well now how much violence we can tolerate.One of the major things with Vision Zero now is to put that more explicitly on the table. It’s like if we’re talking about the environment, and you know you have a certain threshold when it comes to poison, or whatever. You can tolerate up to a certain level. So it’s not just to stop the traffic. You can actually allow traffic. But if you have places in your system where you have unprotected road users and protected road users, according to Vision Zero you can’t allow a higher speed than 30 kilometers per hour [18.6 mph]…

I will say that enforcement plays of course a role in Sweden, but not so much. We are going much more for engineering than enforcement. If you have a very dedicated police staff and they think it’s the most important thing, then you can be quite effective working with police. But I don’t think you will get a safe system. You will reduce risk, but you will not achieve a safe system.

What about camera enforcement?

We are doing it, but in a different way. First of all, it is a national policy. We have both rural and urban areas, and we work with both. And when it comes to safety cameras, which is what we call them, we have put them on most rural roads. We have one of the largest safety camera systems in the world, per population.

But they are not catching people — it’s nudging people. So we put up the cameras on a stretch, and we tell everyone, OK, now you’re going in this area, and in a friendly but firm way we say you have to keep the speed in this area because we have a history of crashes.

It sounds like this would create some interesting discussions in the United States: do we really want to nudge drivers in such directions or do we truly think cars and vehicles should the rulers of the road? Right now, many of our roads are geared toward helping drivers get from Point A to Point B as fast as they can. But, safety is an important issue and one that concerns a lot of people given the number of vehicle deaths.

Smartphones can turn urban dwellers into zombie pedestrians

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What happens when urban residents and visitors are engrossed in their smartphones? It can lead to zombie pedestrians.

But the growing ranks of these cellphone addicts are turning cities like Tokyo, London, New York and Hong Kong into increasingly hazardous hotspots, where zombified shoppers appear to be part of vast games of human pinball…

Tokyo Fire Department, which runs the ambulance service in the megalopolis, says that in the four years to 2013, 122 people had to be rushed to hospital after accidents caused by pedestrians using cellphones.

As well as the vaguely comedic incidents of businessmen smacking into lamp-posts or tripping over dogs, this total also included a middle-aged man who died after straying onto a railway crossing while looking at his phone…

Phone fidgeters dawdling along at snail’s pace, forcing cyclists and pram-pushing mums to swerve out of the way have become such an irritant in Tokyo that public notices have started to appear warning offenders to expect “icy stares”, appealing to the Japanese sense of social harmony — assuming people look up from their phones in the first place.

Smartphone apps activated by sensors that flash warning signs or display the pavement on the screen have also been developed in response to the problem.

An unintended side effect of technological advancement. Walking in a big city can be a dangerous task, particularly given the emphasis in many places on helping cars get to their destinations faster. Things that distract pedestrians – just like things that can distract drivers – can lead to negative outcomes.

It is interesting to note the last piece above that tries to solve a problem created by technology with a technological advancement: just have an app that alerts people. It’s technology all the way down! Would something like Google Glass help get rid of these issues since people would still have their eyes facing forward?

Several of Chicago’s most dangerous intersections the result of diagonal streets

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A new list of the most dangerous intersections in Chicago for pedestrians includes several with three streets:

The six-way intersection of Milwaukee, North and Damen avenues on the North Side is the most dangerous junction for pedestrians in Chicago, according to a list released by the advocacy group Active Transportation Alliance…

There were 43 crashes involving either a pedestrian or a bicycle at the Milwaukee/North/Damen intersection from 2006 through 2012, the highest number of any city intersection for that period, the group found…

“There are proven solutions to make crossing these intersections safer,” said Kyle Whitehead, a campaign directorat the alliance, said Tuesday. “Things as simple as improving the markings on a crosswalk or installing a pedestrian countdown signal can make a difference.”…

The three most dangerous intersections in Chicago were Milwaukee/Damen/North; Cicero and Chicago avenues on the West Side; and Halsted Street/Lincoln Avenue/Fullerton Parkway in Lincoln Park.

It makes sense that some intersections with more streets involved are more dangerous: there are more routes for vehicle traffic and pedestrians have to navigate more crosswalks while having to look in unique directions for potential danger.

Yet, I was struck by two features of these diagonal, and potentially dangerous, streets.

1. The diagonal streets have a long history preceding the efforts of Americans to impose a grid on the Midwestern landscape:

Well, it turns out that most of Chicago’s diagonal streets were originally Native American trails. No, really. Milwaukee Avenue (originally West Plank Road), for example, was once a buffalo route that led to the Chicago River. Eventually settlers moved in, kicked the Native Americans out, and started building taverns along the trail. Once there were taverns, homes and businesses cropped up and the street thrived. Sound familiar? These diagonal paths in the city (Lincoln was Little Fort Road, Elston was Lower Road, Ogden was Southwestern Plank Road) became plank toll roads, and then finally regular streets that serve as some of the major arteries of Chicago.

In other words, the diagonal streets were more direct routes between settlements.

2. Diagonal streets are one of the features of Daniel Burnham’s lauded Plan of Chicago. Such roadways cut through a grid, providing quicker access into and out of the center of the city. However, only one major diagonal was even extended as the result of Burnham’s plan: Ogden Avenue was extended to go closer to the lake. Burnham had a number of avenues intended to radiate out from his proposed Civic Center which was never constructed. (Read more in this booklet in honor of the centennial of the Burnham Plan.)

The dangers of tens of thousands of miles of aging metal gas lines

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Big infrastructure failures attract attention but USA Today finds that millions of Americans live near aging gas lines:

About every other day over the past decade, a gas leak in the United States has destroyed property, hurt someone or killed someone, a USA TODAY Network investigation finds. The most destructive blasts have killed at least 135 people, injured 600 and caused $2 billion in damages since 2004…

A review of federal data shows there are tens of thousands of miles of cast-iron and bare-steel gas mains lurking beneath American cities and towns — despite these pipes being a longtime target of National Transportation Safety Board accident investigators, government regulators and safety advocates.

The Pipeline and Hazardous Materials Safety Administration has been pushing gas utilities for more than a decade to replace aging pipes with more resilient materials like plastic, though it’s not required by law. The industry has responded by replacing thousands of miles of pipe, but a daunting amount remains. It can cost $1 million per mile, or more, to replace aging pipe, costs typically passed to customers…

Aging pipes are a high-risk example of the nation’s struggle to replace its crumbling infrastructure, a danger hidden beneath the ground until a pipe fails or is struck by something and a spark ignites a monstrous blast. Natural gas is piped into 67 million homes and at least 5 million businesses, schools and other buildings across the country, with gas distribution and service lines snaking beneath most neighborhoods in American cities.

A long and fascinating look at how gas is delivered to many homes and places underground.

Perhaps the relative lack of outcry regarding this issue is because the events take place at seemingly random times in different places. In other words, a large-scale explosion might draw more attention than the scattered events that do take place. The costs of fixing this are quite high yet given the typical levels of concern about safety, it seems like this will need to happen at some point.

“Road diets” improve safety

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The US Department of Transportation is recommending “road diets” – limiting the width of roads and reducing lanes – to improve safety on the roads:

Earlier this week, the U.S. Department of Transportation announced an 18-month campaign to improve road safety across the country. One of the things DOT plans to do is create a guide to “road diets” that it will distribute to communities and local governments. DOT says that road diets can reduce traffic crashes by an average of 29 percent, and that in some smaller towns the design approach can cut crashes nearly in half…

The result was a much safer road. In small urban areas (say, populations around 17,000, with traffic volumes up to 12,000 cars a day), post-road diet crashes dropped about 47 percent. In larger metros (with populations around 269,000 and up to 24,000 daily cars), the crash reduction was roughly 19 percent. The combined estimate from all the best studies predicted that accidents would decline 29 percent, on average, after a four-to-three-lane road diet—DOT’s reported figure.

These benefits alone would be enough to merit more road diets, but there were plenty of others. Bicycle and pedestrian traffic tends to soar at these sites, as the recaptured road space gives way to bike lanes or street parking that provides a sidewalk buffer from moving traffic or crossing islands, and as vehicle speeds decline (especially for high-end speeders going more than 5 miles per hour over the limit). Traffic volumes, meanwhile, typically stay even in such a corridor: some drivers diverted to other parts of the street network, while the rest quickly soak up any vacated space.

Best of all, these kinds of changes don’t cost much. When timed with regular road maintenance and re-paving, road diet policies require little more than the paint needed to re-stripe lanes. They’re about as cheap and cost-effective as infrastructure improvements get, which has led some to wonder why the technique isn’t used more widely.

This is counterintuitive: many people would guess that adding lanes to roads makes driving better. I would guess many people fed up with traffic in their community wouldn’t immediately support road diets. Yet, evidence consistently suggests that adding lanes attracts more traffic and that narrow roads prompt drivers to pay more attention and reduce their speed.

The City of Wheaton introduced this years ago on Main Street. The road used to have two narrow lanes in each direction between the railroad tracks and Cole Avenue but this was changed to two lanes in each direction with a median/turn lane. Traffic today seems to move just fine and the median/turn lane helps isolate turns and limit situations where big vehicles in small lanes presented hazards.

Fireworks limited by suburban sprawl

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Fireworks shows are now limited by newer guidelines and more sprawl:

“What’s happened is, the size shell that you can shoot in a particular location has decreased,” Taylor explains. Just as shell width correlates to height, so too does height correlate with regulation. Old regulations dictated that you needed 70 feet of area cleared for every inch of shell fired around a launch area. The new industry standard is 100 feet. So when you play that out, practically, a large 12-inch shell needs 1,200 feet (or nearly a quarter of a mile) cleared in every direction to be considered safe.

Taylor tells me that fireworks sites nationwide have been shrinking with both urbanization and suburban sprawl. And fellow fireworks company Pyrotecnico echoes the sentiment. “What we’re finding is that sites are shrinking,” explains Pyrotecnico Creative Director Rocco Vitale. “Growth is happening. More buildings are going up. And when that happens at a site, a show you could use six-inch shells two years ago becomes a place for four-inch shells.”

Neither company feels that the end product has suffered as a result: Since the extra expense per each inch of shell grows almost exponentially, the savings made from downsizing can be reinvested into the experience.

“Rather than one eight-inch shell, I could probably put 12 three-inch shells up for the same price,” Taylor says. “We like that for several reasons. Larger shells are more dangerous because they have more explosive power in them. But the truth is, people in this country especially like density in their fireworks show.”

So perhaps the best solution is to find large, empty pieces of land that people have to travel to in order to see more impressive fireworks. Or, if available, communities could use bodies of water which also add the bonus of the reflective surface. Yet, many communities shoot fireworks from parks which tend to be close to other things.

There is an odd juxtaposition with this story. The headline reads: “How McMansions Murdered Big Fireworks.” Then the final short paragraph: “So it wasn’t your imagination. Fireworks have gotten smaller over the years. But there’s a bright side: The public may be safer, and happier, for it.” The headline invokes evil McMansions and the desecration of sacred fireworks shows. The story suggests this is all because we want fireworks to be safer and people tend to like more dense fireworks anyway. That’s a McMansion clickbait headline if I’ve every seen one…

Why is Chicago building a new roadway between the Loop and Chinatown?

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The Chicago Tribune presented this headline yesterday: “Mayor proposes new roadway between downtown, Chinatown.” When I first saw this, I thought this might be something along the lines of the Crosstown Expressway, a major new arterial roadway connecting two areas. However, the article seems to emphasize the importance of safety:

The $62 million project, called the Wells-Wentworth Connector, would also realign Wentworth Avenue between Archer and Cermak roads to bring this section of Wentworth in line with the portion of Wentworth south of Cermak, according to the Chicago Department of Transportation.

The Wentworth-Cermak intersection, which jogs in an offset alignment, contributes to a high number of crashes, according to a city analysis…

In Chinatown, the southern end of the new arterial road would offer access to the Dan Ryan Expressway, according to the city’s Central Area Action Plan, a list of proposals and specific projects, along with their construction timetables and estimated costs…

The city has slowly been planning improvements for more than a decade to boost safety and reduce traffic congestion in the area, especially among vehicles exiting the Ryan ramps at Cermak. In April 2008, a semitrailer truck that had just exited the Ryan barreled through a crowded intersection and slammed into the Cermak-Chinatown station, killing two people and injuring 21.

Improving a dangerous intersection, particularly in a higher-pedestrian area, would be helpful. It sounds like Wells and Wentworth could be connected between Roosevelt and 18th Street, providing another north-south route. Yet, the city’s explanation of the rationales for this change hint at another important factor:

1. Improved safety for vehicles, pedestrians and bicyclists. Within a wide study area, the offset intersection at Wentworth and Cermak had the highest number of crashes of any other intersection. In comparison, the number was almost double the number of crashes occuring at the intersection of the Dan Ryan off-ramps with Cermak. The realignment of Wentworth at Cermak is required to facilitate safer connections for all modes of traffic.

2. Construction of a new north-south collector street (Wells Wentworth) . This will allow for improved traffic flow throughout both TIF Redevelopment Areas by creating a coordinated series of intersections, as well as provide or improve pedestrian connectivity within the two project areas and to nearby destinations such as the new Ping Tom Park Fieldhouse, the proposed new Chinatown Library, the existing commercial areas, and transit stops.

3. Significant redevelopment opportunities. Improved connectivity between the Loop, the two TIF Redevelopment Areas, and the surrounding communities will promote the redevelopment of vacant land and expand economic development opportunites.

So the real reason may not be safety or providing another north-south thoroughfare to help relieve traffic. The primary reason, as it often is with urban changes, is development which means money and profits. Safety is good but safety plus new developments that bring in new money are even better. There is money to be made with a new street.

Uncertainty over who is liable for crashes of driverless cars

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When an autonomous car gets into a crash, who is responsible? This question may just delay their mass market release:

“Automaker liability is likely to increase. Crashes are much more likely to be viewed as the fault of the car and the manufacturer,” Anderson said. “If you’re an automaker and you know you’re going to be sued [more frequently], you’re going to have reservations.… The legal liability test doesn’t take into account the long-run benefits.”

In other words, even though a technology is an overall boon to the greater good, its rare instances of failure—and subsequent lawsuits—won’t take that into account. That could slow the movement of driverless cars to the mass market if automakers are wary of legal battles…

As they grapple with what autonomous vehicles might mean for their industry, the legal frontier remains uncertain as well. One possible solution? A payout fund set up to compensate victims of driverless car accidents. That could be modeled similar to the Health and Human Services Department’s vaccine injury compensation fund, which takes a 75-cent tax from every purchased vaccine. The no-fault program helps those who have been hurt by vaccine-related incidents without exposing the medical community to legal battles and expensive damages payouts.

In the early stages, subsidies may be required to help driverless cars take hold in the market, according to Rand’s report on the technology’s adoption. Part of the money allotted for that could be set aside to help potential victims.

Sounds like there is still some work to do here and automakers are quite aware of these issues with recent events like the $1 billion settlement payout from Toyota. While it sounds like the technology is getting close, the legal and social issues might also prove difficult to nail down. But, the outstanding safety potential of driverless cars may force a quick resolution to the liability issue in order to save lives sooner.

Smart highway features coming to two Chicago highways

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A stretch of I-90 will be a “smart highway” within several years:

By 2016, the Tollway plans to install an elaborate system of sensors, cameras and overhead signs on a heavily traveled stretch of the Jane Addams Memorial Tollway (Interstate 90) between the Kennedy Expressway and Barrington Road in Hoffman Estates.

The plan is similar to, but more sophisticated than, a $45 million initiative that the Illinois Department of Transportation will implement during the next two years along the Edens Expressway and the northern stretch of U.S. Highway 41.

The Tollway plan includes installing signs with red and green signals over each lane at every half-mile that would advise motorists about safe speeds and warn of lane closings from accidents or breakdowns…

The goal is to make the Addams, which handles about 317,000 vehicles a day, “a true 21st-century, state-of-the-art corridor,” Tollway officials say.

The fiber optics and other infrastructure being installed on the soon-to-be rebuilt stretch of tollway will be able to accommodate even more sophisticated technology, which might someday automatically drive cars, officials say…

Tollway officials said Washington state’s experience with ATM has been compelling. The system is in use on I-5 in Seattle and on I-90 and State Route 520 between Seattle and Bellevue, and since 2010, the Seattle area has seen an 11 percent decrease in primary accidents and a 40 to 50 percent decrease in secondary accidents, officials said.

While highways in the United States are an engineering marvel, the lack of information about conditions on them has always struck me as a bit odd. It sounds like this new system is intended to provide information for two main purposes: warn people of upcoming obstacles which could then lead to fewer accidents and also to tell people of slower travel times so they can then make decisions about what roads to use.

Up to this point, motorists have been limited to varying levels of information:

1. You see what is front of you. Sometimes, you can spot some of these problems a long way away and get off sooner. But, too often, the line of sight is blocked and before you know it you are in a slow stretch without any alternatives.

2. Traffic reports on the radio. The veracity of these reports can vary.

3. Traffic data now available on GPS and smartphones. These seem to be generally accurate.

4. Cameras along heavily traveled routes. For example, see this set of images from cameras along I-80/94 at the bottom of Lake Michigan. This is more useful these days with smartphones.

Of course, this article also hints that this may just help set up the infrastructure to have completely smart cars where all of the information may be wirelessly passed between cars and limit the human dimension all together.

Critiquing a high-security bunker McMansion in New York City

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McMansions may be designed to impress but what happens if they are built in such a way to push away the outside world? See this example from New York City:

The massive, ground up 7,000-plus-square-foot West Village McMansion belonging to oil heiress Hyatt Bass and her screenwriter husband is being quietly shopped around, the Post has learned. There’s no official listing yet, but Bass hopes to fetch $35 million or more for the fortress home, which was built to be impenetrable following a 2007 incident in which Bass’s mother was held hostage in her own Connecticut abode. Since it was unveiled to the public last year, the bunker home, at Greenwich and West 12th Streets, has made headlines for its incongruous brutalist architecture and ultra-high security features.

Bass purchased the property for $7.5 million in 2001 and has reportedly never occupied the 802 Greenwich Street citadel. Earlier in the year, the compound was brought to our attention by a tipster for failing to shovel out front (Guess no one was there to turn on the heated sidewalks that were installed over the summer.) Someone who recently toured the property told the Post that the it feels “locked-in” and “weird” despite its well-appointed terrace and garden. We have a feeling that this home, built “specifically for this family around their security needs,” is likely to have a hard time selling. When it does, we hope the new owners throw a cornice or any other kind of architectural detail on the misplaced stronghold in the heart of the historic district.

This large home seems to share the odd architectural stylings that tend to mark McMansions. Yet, that odd architecture is often intended to show something positive about the owner, to represent some marker of success or wealth. But, this particular combination of architecture is intended to clearly set the house apart from the public even though it is in a very public setting. Is this even a more in-your-face McMansion because it intentionally pushes people away? Could a home be built that combines the security features found here, the size of this home, and a more welcoming exterior or does privileging security necessarily lead to an outcome like this?