The U.S. Census Bureau uses a relatively crude definition of downtowns, complicating comparison between metros and opening up their findings to criticism. A new method of measuring downtowns via heat maps of job density aims to address this problem.
In a much debated report released by the Census Bureau last year that showed the resurgence of America's downtowns over the prior decade, a rather crude definition of "downtown" was used: "everything within a 2-mile radius of the local city hall".
As Emily Badger notes, this lack of precision "complicates the efforts of business improvement districts and city officials to back up what's supposed to be one of the great urban success stories of the 21st century (and a big topic at The Atlantic's CityLab summit on urban innovation in New York this week): the migration of employers and residents back downtown, redefining these places from dead zones where you one wouldn't want to be caught at night to full-service, 24-hour neighborhoods."
"With this perennial problem in mind, the Center City Philadelphia business improvement district is releasing a report [PDF] today prepared for the International Downtown Association that tries to offer a new way of counting jobs downtown, measuring where the people who hold them live, and enabling comparisons across cities."
"Surely some people will come up finer revisions of this definition..." adds Badger. "But, for now, the technique is an improvement from measuring how crows fly from City Hall."
FULL STORY: The Problem With Defining 'Downtown'

Florida Considers Legalizing ADUs
Current state law allows — but doesn’t require — cities to permit accessory dwelling units in single-family residential neighborhoods.

Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?

HUD Announces Plan to Build Housing on Public Lands
The agency will identify federally owned parcels appropriate for housing development and streamline the regulatory process to lease or transfer land to housing authorities and nonprofit developers.

EPA Terminates $116 Million in Grants for Reducing Emissions from Construction Materials
C-MORE grants were earmarked for industry trade groups and universities.

BART Closes $35 Million Deficit
Cost control and revenue generation measures prevented service cuts.

The New Parisian Hearse is a Bicycle
Sleek, silent, and sustainable, a green trip to the graveyard has hit the streets of the French capital.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
City of Moreno Valley
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
City of Piedmont, CA
NYU Wagner Graduate School of Public Service
City of Cambridge, Maryland