A land use survey is a systematic collection of data about how land is currently being used within a specific area (e.g., a city, region). It involves identifying and mapping different categories of land use (e.g., residential, commercial, industrial, agricultural, recreational, vacant).
Information typically collected or considered during a land use survey includes:
(ĭ) Existing land uses: Type of activity on each parcel (e.g., single-family housing, retail shop, factory, park).
(Į) Building characteristics: Type, height, condition, age of buildings.
(į) Density of development: E.g., number of dwelling units per acre, Floor Area Ratio (FAR). This is related to Population density (Option b) as residential land use and building density directly correlate with population density.
(İ) Infrastructure and services: Availability and condition of roads, utilities, public facilities.
(ı) Environmental features: Presence of water bodies, vegetation, steep slopes, floodplains, protected areas. This relates to Environmental conservation efforts (Option c) as existing conservation areas or environmentally sensitive zones would be noted.
(IJ) Zoning regulations (Option a): While a land use survey primarily documents *existing* land use, it is often conducted in the context of existing zoning regulations. The survey might compare actual uses with permitted uses under zoning to identify conforming/non-conforming uses or areas for potential rezoning. So, zoning is a closely related factor often considered or mapped alongside.
(ij) Ownership patterns.
Let's evaluate the options:
(Ĵ) (a) Zoning regulations: Often considered alongside or as a layer with existing land use data to understand conformance and planning context.
(ĵ) (b) Population density: Directly related to residential land use intensity, which is a key aspect documented in a land use survey.
(Ķ) (c) Environmental conservation efforts: Areas designated for conservation (parks, reserves, sensitive areas) are types of land use or land cover features documented in a survey.
(ķ) (d) Economic growth projections: Economic growth projections are forecasts about future economic activity (e.g., GDP growth, employment trends). While these projections are crucial for *planning future land use* (e.g., to estimate demand for industrial or commercial land), they are not typically data items collected or directly considered as part of a survey that documents *current* or *existing* land use conditions. A land use survey describes the present state; economic projections are about the future.
Therefore, Economic growth projections are NOT typically a direct factor considered *within* a land use survey itself, which focuses on existing conditions. These projections would use land use survey data as an input for future planning.
\[ \boxed{\text{Economic growth projections}} \]