1. the geographic area from which people commute to a city or employment center; the region served by a commuter transportation system.
Usage: often used in urban planning and geography contexts; analogous to 'watershed' but for commuting patterns

Examples

• The commutershed of the metropolitan area extends up to 50 miles from the city center.
• Urban planners study the commutershed to understand traffic patterns and housing demand.
• Many suburbs fall within the commutershed of the major downtown business district.
• The expansion of rail transit has enlarged the commutershed significantly.
• Workers throughout the commutershed rely on public transportation to reach their jobs.