urban park; city park; municipal park
A public park located in an urban area, maintained by a municipality.
This urban park is crowded with families on weekends.
公園 is a general term for any park, while 都市公園 specifically refers to parks in urban settings, often with an emphasis on public municipal management.
Compound of 都市 (toshi, 'city') and 公園 (kōen, 'park').