Most workers commute from home to their jobs. These "Labor Shed" (where workers live) and "Commuter
Shed" (where residents work) graphics provide planners, economic development specialists, job seekers, employers,
transportation authorities and a host of other users with information needed to understand the commuting patterns of
workers. Data used to develop the Labor Shed and Commuter Shed graphics was extracted from the U.S. Census Bureau,
Local Employment Dynamics (LED) Origin-Destination Data Base which is utilized in LED's OnTheMap application. The
employment data used in this application is derived from administrative records maintained by partnering states and
submitted to the U.S. Census Bureau. The data covers private sector and state and local government employment only;
federal employment is excluded.
In developing counts of jobs, LED focuses on primary wage and salary jobs, that is, the highest paying job for
an individual worker for the year. The count of primary jobs is construed to be a measurement for the count of workers.
Data for the District of Columbia (DC), a recently recruited partner state, while currently being processed for use in
LED applications, is not yet in regular production. For this reason, Commuter Shed Maps do not individually highlight
the commuting of Marylanders to DC. The impact of this data gap, however, is lessened by the fact that workers from
Maryland, as well as from other states, characteristically commute to DC for federal employment - a data component
which, again, is not a component of the LED database.
Additional information/exploration on the LED
program.
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Department
of Labor, Licensing and Regulation
Office of Workforce Information and Performance
1100 North Eutaw Street, Room 316
Baltimore, Maryland 21201
(410) 767-2250
Fax: (410) 767-2219
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