What duration is classified as a Long Term Stationary work zone?

In the context of traffic operations and work zones, a Long Term Stationary work zone is defined as one that lasts more than 3 days. This classification is important for managing traffic flow, implementing appropriate safety measures, and establishing detours or alternate routes for an extended period.

A work zone that is in place for more than 3 days typically requires more extensive planning and communication with the public, regulatory agencies, and local communities. The reasoning behind this classification underscores the need for proper signage, ongoing surveillance, and potential interventions to ensure both worker safety and minimal disruption to road users over an extended timeframe.

Shorter durations, such as less than 1 hour or 1-3 days, typically fall under different classifications of work zones, which may involve simpler warning systems or quicker clearance strategies. Daylight work lasting 1-12 hours, while significant, also does not qualify as long-term because it usually involves intermittent work operations rather than continuous presence affecting traffic for extended periods. Thus, the classification of more than 3 days is critical in the framework of traffic engineering and safety management.