Which speed limit applies to a highway lane that is closed for construction, unless otherwise posted?

Which speed limit applies to a highway lane that is closed for construction, unless otherwise posted?

• A. 55 mph
• B. 25 mph
• C. 45 mph
• D. 35 mph

Answer: (C)

Work zones are set up to protect both workers and drivers, so speeds are reduced in areas where a lane is closed for construction. The rule is to follow the work-zone speed limit that’s posted. If there isn’t a specific limit posted for the construction area, the typical default on many highways is forty-five miles per hour. This provides a safer, more manageable speed through the narrowed, activity-filled zone while still allowing traffic to keep moving. As you approach a lane closure, look for signs or flaggers directing you to slow down and merge smoothly well before the obstruction. Going faster than the work-zone limit creates a higher risk of hitting workers or equipment, while going too slowly can disrupt traffic more than necessary. The forty-five mph default (when not posted) is chosen because it balances safety with traffic flow in construction zones.

Work zones are set up to protect both workers and drivers, so speeds are reduced in areas where a lane is closed for construction. The rule is to follow the work-zone speed limit that’s posted. If there isn’t a specific limit posted for the construction area, the typical default on many highways is forty-five miles per hour. This provides a safer, more manageable speed through the narrowed, activity-filled zone while still allowing traffic to keep moving.

As you approach a lane closure, look for signs or flaggers directing you to slow down and merge smoothly well before the obstruction. Going faster than the work-zone limit creates a higher risk of hitting workers or equipment, while going too slowly can disrupt traffic more than necessary. The forty-five mph default (when not posted) is chosen because it balances safety with traffic flow in construction zones.