The remaining portion of this allotment, a section25 ,000 cubits (about83miles) wide by5 ,000 cubits (about17 miles) north to south, would be for the holy city and the open spaces beside it. The city itself would occupy the central portion of this section. It would be for the common use of the Israelites, as would be its open spaces and home sites. The city itself would be4 ,500 cubits (about15 miles) square with a250 cubit (416 feet8 inches) open space border on each of its four sides, another green belt like the one around the temple complex (cf. Ezekiel 45:2). The10 ,000 cubit-wide (33miles) areas on the east and west sides of the city would also be for the production of food for those who lived in the city. Those who lived in the city, from all the tribes of Israel, would cultivate those fields. [source][source][source]
"Whereas cities have always been known as places of moral corruption and rebellion, this city will be a place of eternal [1] rest, refuge, and personal fellowship with others and God ( Ezekiel 48:8-20; Ezekiel 48:30-35)." [2][source]