What is the minimum ground clearance required for a service over a street or road?

The minimum ground clearance required for a service over a street or road is indeed sixteen feet. This standard is crucial for ensuring safe passage for vehicles and pedestrians beneath overhead structures. The sixteen-foot clearance allows for a variety of mid-sized trucks and larger vehicles to navigate without risk of collision with overhead wiring, ducts, or other installations. This requirement helps prevent accidents that could occur if vehicles were to strike low-hanging fixtures while driving, thereby promoting safety in public spaces.

The higher clearances also accommodate emergency vehicles, ensuring that they can respond quickly without obstruction. The standard is set within safety codes and regulations to minimize hazards in areas with regular traffic.

Other options, while they may be considered in different contexts or regulations, do not meet the comprehensive safety requirements expected in most municipal infrastructure regulations concerning roadway usage.