Wednesday, October 31, 2012
Happy Halloween! If you're out trick-or-treating tonight, think about what planners call the "trick-or-treat test" for your neighborhood. The idea is that based on design and form, a great neighborhood for trick-or-treating--kids and families walking around the streets, visiting door to door--is also likely to be a great neighborhood year-round. City Planner Brent Toderian writes about this at the Huffington Post in Does Your Neighbourhood Pass the 'Trick or Treat Test'?:
Great neighbourhoods for trick-or-treating also tend to be great neighborhoods for families everyday:
- Tree-lined streets designed for walkers more than speeding cars.
- Enough density and community completeness, to activate what I call "the power of nearness" - everything you need, nearby.
- Good visual surveillance through doors and stoops, windows (and I don't mean windows in garages), porches and "eyes on the street."
- Connected, legible streets that let you "read" the neighbourhood easily -grids tend to be good for this, but other patterns work too.
All of these are great for trick-or-treating, and equally great for walkable, healthy, economically resilient communities year-round.
It makes a great deal of sense, though I hadn't previously known that the "trick-or-treat test" was a term of art in the planning community. Thanks to Jenna Munoz for the pointer. A related item is Richard Florida's 2012 Halloween Index at The Atlantic Cities:
For this year's "Halloween Index," Kevin Stolarick and my Martin Prosperity Institute (MPI) colleagues focused on five factors that make for a great Halloween metro area — population density (which makes for efficient trick-or-treating), kids ages five to 14 (as a share of metro population), and median income (a measure of regional affluence), as well as candy stores and costume rental stores per one hundred thousand people.
In the story at the link, you can check out the map which shows the best scoring cities in the categories; Chicago is #1. Zillow, however, has San Fransisco at #1 with its similar but slightly different methodology for determining the 20 Best Cities to Trick or Treat in 2012:
There is a common belief that wealthy neighborhoods are the Holy Grail for harvesting the most Halloween candy. However, to provide a more holistic approach to trick-or-treating, the Zillow Trick-or-Treat Index was calculated using four equally weighted data variables: Zillow Home Value Index, population density, Walk Score and local crime data from Relocation Essentials. Based on those variables, the Index represents cities that will provide the most candy, with the least walking and safety risks.
Finally, Paul Knight at Treehugger provides a mathematical forumula in More on the Trick or Treat Test: Calcluating the "Candy Density":
Potential Candy Score (Candy Pieces) = Target Neighborhood (Acres) x Houses-Per-Acre x Families-Per-House (accounting for duplexes, etc) x % Candy-Giving-Families x Candy-Pieces-Per-Family
I always say that land use is ultimately about the built environment of the communities in which we live. If you are out in your community on Halloween night, be safe, and take the opportunity to observe and think about land use!
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