Do Parking Lots Cause More Traffic?

In an article by Slate Magazine, Tom Vanderbilt explores whether planning policies mandating a minimum number of parking spaces when building urban and semi-urban areas is really a good idea. These policies took hold around the 1960’s, meaning they do not factor in the other forms of transportation that have developed since then and the initiatives of environmentally people to utilize them. Creating large parking lots fragments urban areas and makes walking unpleasant or impractical, which in turn leads to more people driving and then can lead to the need for more parking lots.

Some cities have already begun reducing the number of policy mandated parking spots, such as in Columbus, Ohio where they have reduced parking minimums for malls by 20%.

Parking lot in Downtown Baltimore

Structural Organization of Urban Areas Affects Public Transport

I found a study conducted in Milan, Italy that concluded the nature of urban expansion influences the degree of urban mobility and the competitiveness of public transportation. Urban sprawl, which results in more dispersed and less structured development, represents one of the least environmentally acceptable solutions in the study and is associated with the lowest level of public transport. A link to the study is provided at the bottom of the page. A NASA webpage that examines the impacts of fast growing urban areas provides a useful connection between the study that I found and the spatial extent of the environmental impacts of urban sprawl. There is a neat reconstruction of the growth of Baltimore over the past 200 years. Enjoy!

Urban Mobility and Urban Form

Across Europe, Irking Drivers is Urban Policy

As the city of Zurich has made harder for people to drive cars into the city, it has also improved public transport, with an elaborate and ever expanding system of trams. Here, a tram drives down Limmatquai, one of many streets that have been made "car-free" in the past decade. Photo credit: Christoph Bangert for The New York Times

According to “Across Europe, Irking Drivers is Urban Policy,” an article found in the New York Times, a car takes up about 4,000 cubic feet of urban space in Zurich while a person only takes up 3. Large cities in the United States have the tendency to alter their cities to accommodate driving; however European cities such as Zurich Vienna, Munich, and Copenhagen have been taking steps to make cities more livable for people. The idea is simple: to create environments that are openly hostile to cars thus forcing people to use more environmentally friendly forms of transportation. In Zurich measures such as adding closely spaced red lights on roads to create delays, removing pedestrian underpasses, and banning cars on some blocks are being taken. Results have shown that these methods are proving to be effective. Households without cars have increased from 40 percent to 45 percent and car owners are using their cars less. US cities such as San Francisco and New York are slowly taking similar action, but are still lacking fundamental support and policy. I leave you with the following statement made by a city official, “I feel like I am always waiting to cross the street. I can’t get used to the idea that I am worth less than a car.”

Make Impermeable Roads Permeable?

Innovators: Better Roads Ahead

Researchers at Washington State University discuss problems involved with the construction and use of roads in urban settings. Once a city is paved and the quantity of permeable land is reduced, pollution builds up on roads, awaiting the next heavy rainfall to wash it away. Since this rain is then unable to reenter ground water due to the pavement, it instead flows into sewers and directly into waterways. This inhibits the ground from filtering the pollutants and flushes large quantities of the pollutants into rivers and streams in a short time. These researchers purpose a new type a pavement that would allow for water to permeate through it and enter the ground, helping to mitigate the issue.

PlayPlay

Increased Car Ownership and Growing Environmental Concerns

Driving in India (http://helloji.files.wordpress.com/2008/10/driving-in-india_1.jpg)

Car ownership is increasingly feasible for citizens in around the world, as companies like Renault-Nissan work to develop cars that sell for as little as $2,500. While low-cost cars increase accessibility to transportation for many people, smog and traffic congestion are growing issues in clogged urban centers like New Delhi, India and Bangkok, Thailand. As auto transportation becomes more popular, however, it introduces many environmental issues such, as air and water pollution, which local governments in developing countries may not have the means to mitigate.

New roads in amazon may deliver disease

In the article “New Roads in the Amazon May Deliver Disease” by Joanne Silberner posted on the disease section, biostatistician Bill Pan discusses how pools of water form alongside roads and act as nesting grounds for mosquitoes that are potentially infected with malaria. I found this piece of information interesting as when generally thinking about how disease spreads, I had only considered the migration of people from one location to another as the sole cause. In addition, it is known that there are many cons associated with building a road, but I feel that this is an issue that is often overlooked.

Lombard Street: San Francisco’s Most Popular Road

Current Day Lombard Street // Image from: http://sanfranciscoforyou.com/wp-content/uploads/2010/03/lombard-street.jpg

Guidelines is a monthly newsletter of the San Francisco City Guides webpage containing articles about San Francisco’s history. One article in particular focuses on Lombard Street, a road constructed in 1922 with 8 turns, a 16% steep grade, and 250 steps per side. This is one of the steepest and curviest streets to date and upon construction immediately posed problems for the growing urban city. In this article, Susan Saperstein writes about how the city paid for the street on the condition that the residents maintain the plantings. As would be expected, neighbors complained and argued about the management of the plants and shrubbery. On top of this, the plants did not hold the soil back and erosion problems arose. However, it was soon discovered that hydrangeas have the ability to prevent erosion and these plants soon lined the 250 steps of Lombard Street. Today this road is a popular tourist destination and illustrates the marvels of urban road planning and environmental wonders.

 

 

 

Global Health Map

Linked is a site with a detailed Healthmap. This map represents all of the current notable disease activity throughout the globe and the level of activity at this area. A casual glance at this map shows that there is a definite correlation between developed areas (i.e; east coast of USA, Middle Europe) and the frequency of disease outbreak. This could be attributed to population mobility and/or density which are both products of developed areas. Oppositely, the more severe outbreaks occur in more secluded areas such as mid-west Africa and western Brazil. This may be an indicator of how much access these areas have to pharmaceuticals.

NYC’s Metro Mitt a creative idea, but does it actually do anything?

Designed to reduce the risk of catching a disease on the subway, these metro mitts are available for free at many of New York City’s subway locations. Not only do the mitts look incredibly tacky, but will this thin sheet of plastic really help prevent people from all of the germs in the subway? Although the Metro Mitt will help reduce the risk of germs on your hands, there still remains thousands of other ways to contract a disease on a subway.

photo retrieved from http://gawker.com/5788169/the-disposable-subway-riding-glove-is-completely-idiotic