Transportation

Urban Density Decreases Car Use

- Adam Clare

transit_type
It’s well established that people living in urban areas use cars less frequently than their suburban and rural counterparts. Some argue that it is thanks to better transit services that urbanites don’t drive but there is another reason for success. Population density alone can make a striking impact on how often people drive!

Holtzclaw concluded that even in areas with minimal transit service, density affected VMT [vehicle miles travelled]. For example, in an area with only two buses per hour, a census tract with 20 households per acre drove about 40 percent less per household than one with two units per acre (15,374 per year as opposed to 27,339). But VMT did not stop dropping at the 20 households per acre level. An area with 100 households per acre drove 1/3 fewer miles than the 20-per-acre neighborhood (10,028 VMT per household) and one with 500 households per acre drove 40 percent less than the area witih 100 households per acre (5781).

Read more at Planetizen.

Futuristic Things That Became Reality Last Year

- Adam Clare

It seems that most ideas in the realm of Science Fiction stay as fiction but it’s not too rare that “out there” ideas from Sci-Fi can become real. At the Sci-Fi blog IO9 they have complied a list of some seemingly crazy things that turned out to become real last year. The list range from the really cool to the more banal that can occur everyday.

9. An Electric Car is the Year’s Best

If anyone ever doubted that electric cars were the future, those concerns were officially laid to rest in 2012. Tesla’s luxury Sedan, the Model S, captured one of the auto industry’s most prestigious awards by taking home Motor Trend’s Car of the Year honors. It marked the first time that an electric car has taken the top prize — a vehicle that doesn’t run on gas or have an internal combustion engine.

Read more at IO9.

A Greener Asphalt

- Adam Clare

Roads are often overlooked when it comes to the impact of cars on the environment, but we can’t ignore the roads have on the environment when discussing the practicality of cars. Asphalt is used to make roads and the process of creating asphalt is very energy intensive. In Vancouver, they are looking into ways to lower the negative impact of car infrastructure by making greener roads.

First, it allows asphalt to be heated at 20 to 40 degrees less than is necessary when using the traditional “hot mix” method. This reduces the amount of fuel necessary for the process, which in turn reduces the resulting greenhouse-gas production by as much as 50 per cent. Second, although there are other paving materials that have similar characteristics, they’re normally made of petroleum products. GreenMantra’s product comes from recycled plastics.

The wax is slightly more expensive than petroleum-based materials, but GreenMantra and the City of Vancouver are looking to bring down the cost by sourcing cheaper plastic. The price could also drop of its own accord, as GreenMantra begins to produce the stuff in greater quantities.

Read more at the Torontoist.

A Solar Powered Combustion Engine May Be in Your Future

- Adam Clare

This may sound counter-intutitive, but researches have begun a project to build an internal combustion engine (a common car engine) that runs off of solar power. Instead of using gas to ignite everything they want to heat water, add a dash of oil, to create a replacement to the overused pollution producing machine that is one of the leading causes of global warming.

To begin, mirrored parabolic solar collectors would be used to heat oil to a temperature of at least 400 to 700ºF (204 to 371ºC). This hot oil would then be injected into the cylinder chamber of the engine, just like gasoline ordinarily is. A few microdroplets of water would then also be introduced, which would turn to steam immediately upon contact with the hot oil.

The rapidly-expanding steam would serve the same purpose as exploding gas, driving the piston downward and turning the driveshaft. As the piston reached the bottom of its stroke, the spent steam and oil would exit the cylinder and be run through an oil/steam separator. They could then each be returned to their respective reservoirs, for re-use within the closed-loop system.

Read more at gizmag.

NYC Mayor Bloomberg Loves Bike Lanes

- Adam Clare

As Toronto fights smart planning and removes sustainable transportation infrastructure (indeed, paying hundreds of thousands of dollars to do so), New York City Mayor Bloomberg continues to espouse how great bike lanes are. In NYC they have added a lot of miles of bike lanes and found local business get more business, neighbourhoods become nicer, and more people can get around easier than they did before!

With the release by NYC DOT this week of a report showing the economic impact of their street projects, Bloomberg wove the economic case into his speech. “Talk to merchants everywhere we’ve put protected bicycle lanes [and pedestrian plazas]… They will tell you that business is dramatically better than it was before.”

Bloomberg called New York City’s legacy of mega-highway building by former DOT Commissioner Robert Moses a “mistake” because “we bulldozed neighborhoods.”

With the mistakes of the past fading from view, Bloomberg seems to understand the direct link between how streets are used and whether or not a city succeeds. “We’re using the streets in ways they had not been used in a long time,” he said, “Cyclists and pedestrians and bus riders are as important — if not, I would argue more important — than automobile riders.”

While he acknowledged that bike lanes “are always controversial” he defended them by noting that, “more and more people are using them.”

Looking ahead, Bloomberg said he has no plans of letting naysayers or controversies stop the progress. “Transportation… it’s not sexy and it certainly invites controversy,” he said, but added, “We’ve just got to keep developing, keep building, sensibly, with some plans and community involvement; but not stopping.”

As you can probably guess from my recent series of pro-bike lane posts, I am rather embarrassed by Toronto Mayor Rob Ford and his archaic approach to transit. When he’s out of office we may get to see some good news coming from Toronto again.

Read more here.

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