Urban reserve boundary is defined as the area of land which remains free of development for future expansion of the urban growth boundary.

• A. Area of land which remains free of development for future expansion of urban growth boundary
• B. Land available for development 20-25 years
• C. Area of Land where development is channeled over time
• D. Area of land targeted for new or improved infrastructure over 5-10 years

Answer: (A)

The key idea is that an urban reserve boundary marks land that is set aside to stay undeveloped so the urban growth boundary can expand into it in the future. This reserve exists specifically to provide land for future growth, ensuring that expansion is planned and not left to random development. It isn’t about a development horizon or about current infrastructure needs; it’s about preserving a future expansion area for the urban boundary.

The other descriptions don’t fit that purpose. Describing land as available for development in 20–25 years speaks to a future development timeline rather than a designated boundary that must remain undeveloped for eventual growth. Describing land where development is channeled over time aligns more with growth corridors or patterning, not a reserved expansion area for the boundary. Describing land targeted for new or improved infrastructure over a short horizon is about infrastructure planning, not the boundary that controls where urban growth can extend.

So the definition that the urban reserve boundary remains free of development to accommodate future expansion of the urban growth boundary is the best fit.