Tag Archives: traffic

Seeing traffic and congestion as a sign of success

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While some might generally consider traffic and congestion to be negative (see examples here and here), here is an alternative argument: traffic and congestion are one sign of urban success.

Congestion, in the urban context, is often a symptom of success.

If people enjoy crowded places, it seems a bit strange that federal and state governments continue to wage a war against traffic congestion. Despite many hundreds of billions dollars spent increasing road capacity, they’ve not yet won; thank God. After all, when the congestion warriors have won, the results aren’t often pretty. Detroit, for example, has lots of expressways and widened streets and suffers from very little congestion. Yet no one would hold up Detroit as a model.

After all, congestion is a bit like cholesterol – if you don’t have any, you die. And like cholesterol, there’s a good kind and a bad kind. Congestion measurements should be divided between through-traffic and traffic that includes local origins or destinations, the latter being the “good kind.” Travelers who bring commerce to a city add more value than someone just driving through, and any thorough assessment of congestion needs to be balanced with other factors such as retail sales, real estate value and pedestrian volume…

This doesn’t mean that cities should strive for congestion, but they should recognize that traffic is often a sign of dynamism. Moving vehicular traffic is obviously a necessary function, but by making it the only goal, cities lose out on the economic potential created by the crowds of people that bring life to a city.

Let me translate this argument into the suburban context in which I have studied. Most suburban communities would love to have thriving businesses within municipal limits. This brings in tax dollars, jobs, and a better image (a good place to do business, a vibrant place, etc.). But, for this to happen, this is going to require more people driving through and into the community. A typical NIMBY response to new development, particularly commercial property, is that it will increase traffic which threatens safety. There may be some truth to this but it is also about an image and whether the location is a residential space or something else. Additionally, many suburbanites assume traffic and congestion are city problems, not suburban problems, and therefore are unhappy when their mobility is more limited. A classic local example is Naperville: I’m not sure too many people in Naperville really desire having large parking garages in the downtown. At the same time, it is good that so many people want to come downtown and spend money. Ultimately, there are ways to limit this auto dependence and congestion in downtowns but you still need to plan for and accommodate the large number of cars.

All this suggests that there may be some contingencies regarding congestion:

1. There is a somewhere between not enough traffic and too much. These standards could be very different in different places. In quieter and smaller communities, I suspect the threshold is much lower. The character of a neighborhood or community is going to impact this decision. Perhaps there are even formulas that can predict this.

2. This is location dependent. Looking at congestion in a downtown area is very different than looking at traffic on collector roads or nearby interstates. Problems arise when transportation needs cross these location boundaries, say, when roads in a downtown are used to get to the other side of the community rather than to visit the vibrant downtown. The solutions for each location may be very different, and one size fits all policies may not be very effective.

Overall, it is unlikely that single suburbs or even small groups of suburbs can eliminate congestion and traffic on their own. It is not about getting rid of cars but rather successfully adapting spaces so that the cars are not overwhelming. We can think about ways to reduce congestion or ameliorate its occurrence in particular contexts, even recognizing that it may be a good sign.

Building intermodal facilities to relieve traffic congestion

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After examining a new report that Chicago has some of the worst traffic bottlenecks in the country, the suggestion is made not to add lanes to the highways but rather to build more intermodal facilities:

“This is a roadway that has 1950s technology that we are using for 2011 traffic,” said Don Schaefer, executive vice president of the Mid-West Truckers Association. “Aside from a few locations on the Illinois Tollway, there are very few roadways in the Chicago area that are engineered to handle 2011 traffic volumes.”

Adding highway lanes is unlikely to produce the capacity necessary to ease congestion, experts said. A partial solution involves building more intermodal facilities where truck trailers are loaded onto flatbed train cars and transported long distance by rail, then transferred to trucks for the last segment of trips.

One such facility is the sprawling CenterPoint Intermodal Center near Joliet, on the site of the former Joliet Arsenal. But even there, truck traffic is a problem on Arsenal Road leading to Interstate Highway 55.

“The state is building a new interchange to relieve traffic, but today truck traffic trying to get off I-55 southbound is backed up on to the highway,” Schaefer said.

While adding lanes may seem like “common sense,” studies consistently show that this simply encourages more traffic. Think about places have kept adding lanes like downtown Atlanta (I-75 corridor in particular) or the Los Angeles region. Traffic is still an issue during peak times and those roads are already at six or more lanes in each direction.

Intermodal facilities are an intriguing solution. A few thoughts about these:

1. Do most Americans even know what they are? If not, they should as many of their consumer items are routed through these facilities.

2. Part of the reason this article caught my attention is that just last week I drove right by the Centerpoint Intermodal Center which is just east of I-55 and just south of the Des Plaines River. The area was an interesting one: the large facility itself is surrounded by a number of warehouses and distribution centers, including Wal-Mart. When driving a car through such places, I tend to feel out of place as everything is a little bigger: the buildings, the space, the trucks. And yes, the ramp to get on I-55 northbound at Arsenal Road had a long backup of trucks.

Here is some more information on the CenterPoint Facility that just opened in 2010:

The facility will be a central spot where train containers from California, Texas and the Pacific Rim will be delivered for pick-up by trucks moving goods to warehouses and distribution centers throughout the Midwest.

CenterPoint already has an international intermodal facility in nearby Elwood. Combined, the sites will be the country’s largest inland port. In an era of high fuel costs and declining numbers of cross-country truck drivers, the facility is expected to be a more efficient, environmentally-friendly mode of hauling.

A third CenterPoint facility also is planned for Crete.

The $2 billion Joliet development – located on 3,800 acres south of Laraway Road between Brandon and Patterson roads – is the largest construction project in Will County.  It has created about 1,000 construction jobs.

3. What would it take to build more of these? One obvious question is where to put them. This one near Joliet is just outside the Chicago region and there is not much around it: an oil refinery and the Abraham Lincoln National Cemetery. Most importantly, there are not a lot of houses nearby. If you tried to build these closer to cities, I’m sure there would be NIMBY issues. Imagine if someone wanted to build a new one near the Circle Interchange in Chicago – residents would complain and the price of land would likely be prohibitive. There are some older facilities embedded in the Chicago region; for example, there is one in Chicago just south of Midway Airport between 65th and 73rd Streets. You can see Union Pacific’s Chicago region facilities here.

But these facilities are needed, particularly in the Chicago region with its radial railroad system and many at-grade crossings. In recent years, the goal has been to relieve some of the rail traffic closer to the city which was behind the fight over whether Canadian National should be allowed to purchase the Elgin, Joliet & Eastern beltline railroad that runs around the city and on which CN wanted to run more freight trains.

The weekend of “Carmageddon” in Los Angeles

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Local highway construction doesn’t typically garner national attention. But there has been plenty of news for weeks about a key highway closing in Los Angeles:

Interstate 405, a freeway normally so clogged that locals like to joke that its name is shorthand for “traffic that moves no faster than 4 or 5 miles an hour,” is closing for 53 hours for a major construction project.

As crews worked feverishly to get the freeway open in time for Monday morning’s rush-hour, residents have been making plans for weeks to stay off local roads, lest they trigger what officials dubbed “Carmageddon.”

Such an event could back up vehicles from the 405 to surface streets and other freeways, causing a domino effect that could paralyze much of the city.

With warnings having been broadcast through television, radio, social media and flashing freeway signs as far away as San Francisco, much of the city’s nearly 4 million residents appear ready to stay off the roads.

As I have seen multiple stories about this, several thoughts came to mind:

1. It is a 53 hour closure, not the end of the world. This has been overhyped. People will survive.

2. Shouldn’t planners be lauded more for doing the work over a summer weekend? The preparation for the whole project actually sounds pretty good.

3. People don’t often think about roads until they are a problem. This is a good example of that.

4. Even though it may have been overhyped, this is still a legitimate social problem, particularly for emergency vehicles and other important highway users. This seems to be more common with highway construction: a long, well-publicized campaign to make sure that residents are made aware of what is to come. If people know what is coming, they are usually pretty good at making other plans. Like with many other social issues, public officials need to walk a fine line between overhyping this, like using the term “Carmageddon,” while also making sure that people are aware of the severity of the problem.

5. This would be a good opportunity to think about new transportation options in the Los Angeles region. As the map accompany the AP story shows, there are only a few routes across the Santa Monica mountains. The answer is simply not to construct additional highway lanes and more drivers will then use the highway.

6. This reminds me of some examples of cities that have eliminated highways, like the Embarcadero Freeway in San Francisco, and traffic has adapted. Closing the highway for a short time is a nuisance but if the highway was closed longer, I bet people would adapt.

170 options for improving the Eisenhower

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The Eisenhower expressway is a key artery for traffic entering and leaving Chicago. The public is now invited to look at plans, including 170 possible improvements, that have been developed and could be put into practice in the future:

In response, highway design engineers have come up with 170 different ideas to reduce gridlock and accidents on the Eisenhower. The plan also focuses on improving travel options for mass-transit riders and bicyclists and pedestrians using nearby arterial streets…

The possible solutions include widening the Eisenhower to four lanes in each direction for the entire length of the highway to make room for “managed lanes’’ that would handle car-poolers, express buses or drivers willing to pay tolls to commute more quickly during rush hours, according to IDOT planners.

An expansion of CTA Blue Line rail service, from its current terminus in Forest Park to DuPage County, and other new transit services are also on the table, officials said. They include a possible light-rail line and designating a bus-rapid transit corridor that would be open to express buses traveling between the suburbs and downtown at least part of the day…

Major improvements are needed because traffic volumes on the Eisenhower are up to 180,000 vehicles a day, making it one of the busiest and most congested expressways in the Chicago region, officials said.

It sounds like there are a lot of options on the table. As the article notes, this is now an issue because this road is handling much more traffic than was originally intended and the traffic is not just one-way (in to the city in the morning, out in the afternoon) but now goes both directions. I can also imagine that all of this will stir up some discussion: special toll lanes? Construction that will go on for years? More money spent on mass transit? It seems like multiple solutions are needed included getting more drivers off the road as well as improving the traffic flow along this stretch.

Of course, a lot of this is for down the road as the planning has to take place and the money has to be found:

So far funding is available only to continue preliminary engineering, which is expected to be wrapped up in the spring of 2013, officials said. Design would then take several more years.

“Part of our analysis is to examine the financing options,’’ Harmet said. “We are a ways away from construction.’’

While the discussion could just center on the Eisenhower, this could also lead to larger conversations about the role of highways and mass transit within metropolitan regions. If the Eisenhower, and other local highways, are continually issues, perhaps new things have to be tried and transportation has to be dealt with on a more comprehensive level within regions (see a study like this for a broader metropolitan approach).

Chicago suburbs consider more roundabouts

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The roundabout has had a sort of renaissance in American traffic and road design in recent years. While many Americans might consider roundabouts to be European, there are more being built in the Chicago suburbs:

At least 10 roundabouts have recently been considered or launched in the Chicago area. The intersections consist of a center island surrounded by a one-way lane of traffic where drivers yield to circling cars without the instruction of stop signs or traffic signals.

South Holland in 2008 was one of the first in the area to build a modern roundabout. Another was finished in Lincolnshire in November. Kane County is planning one west of Elgin. Another proposal was recently unveiled for Chicago’s West Lakeview neighborhood, and the Illinois Department of Transportation is looking to convert the despised Cumberland Circle in Des Plaines into a modern roundabout as well.

Because the design forces vehicles to slow down and eliminates left-hand turns, the possibility for multicar accidents is much lower than at a traditional intersection, safety experts say.

In addition to the safety improvements, I recall reading that roundabouts also accommodate more traffic. Instead of having cars stop (at either stop signs or traffic lights), there is more continuous flow.

It is also interesting to read how suburban residents seem afraid of these roundabouts: how does one drive through them? Perhaps suburban drivers all have seen how Clark Griswold (played by Chevy Chase) got stuck in a London roundabout for hours in European Vacation. At least at the beginning, this unfamiliarity may contribute to the reduction of accidents: people have to slow down in order to figure out their next course of action.

In the long run, this is a good reminder that driving habits and behavior are very much conditioned by what we are used to. This reminds of Hans Monderman, the Dutch traffic engineer, who went to great lengths to get drivers to readjust their behavior (and the American way of just adding traffic signs doesn’t help – read about it in Traffic).

(As a side note: speaking from experience with a roundabout in northern Indiana that I drove through for several years, it is pretty easy.)

An example of fun solutions to social problems: speed camera lottery

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There are lots of social problems where it is hard to motivate individuals to support efforts to battle the problems or to change their individual behavior. But what if individuals could have a chance to benefit from the measures beyond simply the abstract “you’re helping society”? Some thinkers developed a lottery that might improve people’s views of speed cameras and reduced the number of speeding people on the road:

“Can we get more people to obey the speed limit by making it fun to do?” That’s a question Volkswagen recently posed in a public contest — and the winning entry was the Speed Camera Lottery, conceived by Kevin Richardson of San Francisco. Richardson’s idea, quite simply, is to build a better speed trap. Strategically placed traffic cameras will photograph all passing cars. Drivers exceeding the speed limit are sent tickets, while those obeying it are pooled into a lottery funded by the fines. Every now and then a randomly selected winner is sent a check.

The speed-limit contest was part of the Fun Theory, a program designed by Swedish advertising firm DDB Stockholm to make “seemingly baleful social challenges — environmental protection, speed-limit adherence, boosting public transportation ridership — enjoyable,” according to the Wheels blog of the New York Times. Other transportation-related innovations included the Wiki Traffic Light, which tries to get people to stop on red by fixing a screen that displays interesting facts, and the Piano Stairs, which nudges subway riders off escalators and onto the stairs by converting the steps into piano keys — ala the “Heart and Soul” scene from “Big.”

A demo of the Speed Camera Lottery enacted in Stockholm seems to have been a success. In collaboration with the Swedish National Society for Road Safety, Volkswagen installed a speed camera that showed drivers their speed. Over a three-day period the camera snapped shots of 24,857 cars. The average speed before the test was 32 kilometers an hour. During the test that figure dropped to 25 k.p.h. — a 22 percent reduction in speed.

My first thought upon reading this was that it is a clever way to deal with the issue of speeding. But, this could get complicated quickly. Where exactly is the trade-off point where people need to see that enough drivers who obey the law are benefiting versus the number of people who are receiving tickets? Such cameras have been particularly detested in the United Kingdom and the United States – would a program like this be enough to overcome these attitudes? More broadly, should people be rewarded for following laws or guidelines?

In general, we need more creative thinking like this. People generally don’t like to be told what to do, particularly if they feel that they are being scolded or that the state is just out to get them (or raise revenue). But if people can be convinced that they could tangibly benefit from following the law or fighting a particular social problem, perhaps more people would jump on board.

A new bridge just beyond Hoover Dam

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The road from Phoenix to Las Vegas crosses right over the top of Hoover Dam, one of the engineering marvels of the United States. Now travelers have a bypass route: a new bridge, the second tallest in the United States, was recently completed allowing travelers to avoid the slow, two-lane road over the dam.

Read more about the project at its official page.

Will the new bridge include guides who will tell you “take all the Dam photos you want!”?

Good news about Chicago traffic and congestion – but due to new criteria

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A new report from a group named CEOs for Cities claims that Chicagoans spend the least amount of time in rush-hour traffic compared to other major cities:

The report’s ranking of mobility in 51 cities found that Chicago-area residents spend the least time in rush-hour travel. In Chicago and some of the other best-performing cities — including New Orleans, New York, Portland, Ore., and Sacramento, Calif. — commuters typically spend 40 fewer hours a year in peak-hour travel than the average American, the report said.

In metro areas with the worst urban sprawl — including Nashville, Detroit, Indianapolis and Raleigh, N.C. — residents spend as much as 240 hours per year in rush-period travel on average because commuting distances are much longer, said the report, which was produced with the support of the Rockefeller Foundation.

This seems to be contrary to other studies I’ve seen that suggest Chicago is quite congested. One reason this study might have different results is a new criteria in the methodology.

The report’s author criticized other mobility studies that focus on the amount of traffic congestion in a region without factoring in travel distance.

The Urban Mobility Report, issued every two years by the Texas Transportation Institute, is regarded by many experts as the authoritative voice on traffic congestion issues. The report consistently ranks the Chicago region as the second or third most-congested area of the nation. It does not account for travel distance.

I am left wondering whether travel distance an important factor to include…

The Infrastructurist comments on the disparities in the two sets of rankings.

Comparing male and female drivers

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A recent study by New York City shed some light on gender differences in driving and traffic behavior:

80 percent of all crashes in a five-year period in which pedestrians were seriously injured or killed involved men who were driving. The imbalance is far too great to be explained away by the predominance of men among bus, livery, taxi and delivery drivers, said Seth Solomonow, a spokesman for the city’s Transportation Department…

The males of the species are not only more dangerous as drivers, they are more likely to be hurt while walking, the city’s study found. More men than women were killed or injured as pedestrians in every age group except among those over 64 (perhaps because women live longer and were overrepresented). Boys 5 to 17 years old ranked first in the absolute number of pedestrian deaths and serious injuries, with 785, more than twice the number of girls in that age range, though elderly people were more vulnerable as a share of the population.

The article suggests that boys and girls learn these behaviors at a young age: boys think it is okay to be more aggressive around the street.

So where exactly do boys pick up this information? From their fathers/role models, the media, watching people drive or walk around? This socialization process would an intriguing one to delve into.

Minneapolis and Seattle fight congestion

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USA Today reports on successful efforts in Minneapolis and Seattle to cut down on congestion on local highways. Some of the efforts include: building more bus lanes, building more light rail, encouraging employers to have flexible schedules, variable speed limits depending on traffic, high-occupancy vehicle lanes, and more.