What are the pipes that deliver water to users and hydrants on individual streets known as?

The term used for the pipes that deliver water to users and hydrants on individual streets is "distributor." This terminology is essential in the context of water distribution systems within urban infrastructure. Distributors are typically laid out along streets or roadways and branch off to service individual buildings or hydrants, ensuring that water is adequately supplied for various needs, such as residential consumption and fire suppression.

The distributor plays a crucial role in maintaining pressure and flow rates, which are vital for firefighting efforts as well as meeting everyday water demand. Understanding the function of these pipes helps firefighters and other emergency responders identify critical water sources during an emergency situation.

The other options refer to related components of a water distribution system but do not specifically describe the pipes responsible for delivering water directly to the end users and hydrants. Cross mains typically refer to larger mains that connect various segments of a water distribution system, secondaries are often smaller pipes that serve smaller areas or connect to the main lines, and service lines usually denote the smaller pipes that connect a building to the water distribution network.