街道 (jiēdào) means 'street' or 'neighborhood' and can refer to either a physical road in a city or an administrative district. In everyday usage, it most commonly describes a city street. It is slightly more formal than 街 (jiē) alone.
这条街道两旁种满了樱花树。
zhè tiáo jiēdào liǎng páng zhòng mǎn le yīnghuā shù.
Both sides of this street are lined with cherry blossom trees.
周末街道上到处都是逛街的人。
zhōumò jiēdào shàng dàochù dōu shì guàngjiē de rén.
On weekends, the streets are full of people shopping.
他们住在一条安静的小街道上。
tāmen zhù zài yī tiáo ānjìng de xiǎo jiēdào shàng.
They live on a quiet little street.