12. Deliverables

12.1 GIS Package

The GIS package forms the spatial backbone of the Aburi–Apedwa Integrated Development. Because the project spans education, hospital systems, utilities, housing, energy, agriculture, hydrology, roads, and civic infrastructure, the GIS environment must unify every technical discipline. This section defines the full GIS package—its layers, the reasoning behind each component, and how these datasets will support designers, engineers, planners, construction teams, and long-term facility managers.

Overview

The GIS package provides authoritative spatial data for site planning, engineering design, construction phasing, environmental assessment, hydrologic modeling, and long-term operations of the new district. The package must support:

• urban planning and land allocation;
• transportation and circulation design;
• utility mapping and redundancy planning;
• hospital logistics and emergency access;
• university campus layout and building siting;
• SIP factory siting and industrial layout;
• stormwater, drainage, and watershed management;
• 3D modeling, cut/fill, and construction sequencing.

The GIS package is designed for ESRI-compatible systems (ArcGIS Pro, ArcGIS Online, QGIS compatibility) and will be maintained by a dedicated GIS administrator as the project evolves.

Required GIS Layer Categories

The full GIS dataset is organized into structured categories. Each category contains specific layers with defined purpose and users.

A. Foundational Basemaps

• High-resolution satellite imagery (0.3–0.5m)
• Digital Elevation Model (DEM)
• Digital Terrain Model (DTM)
• Hillshade and slope raster layers
• 3D surface model (DSM)

Why we need these:

Establish the base spatial frame for every design decision. Required for siting buildings, road alignments, hydrology, and earthwork calculations.

Who uses them: engineers, architects, hydrology modelers, planners.

B. Land Ownership & Administrative Layers

• Parcels, deeds, and boundary lines
• Traditional Authority boundaries
• District and regional jurisdiction boundaries
• Right-of-way (ROW) datasets
• Existing easements and restrictions

Why we need these: Legally accurate land use decisions.

Users: legal teams, surveyors, permitting, planners.

C. Environmental Datasets

• Hydrography (streams, rivers, wetlands)
• Watershed boundaries
• Vegetation cover
• Soil classifications
• Protected ecological zones
• Flood susceptibility zones

Why we need these:

Essential for evaluating development suitability, hospital drainage, agricultural potential, and long-term sustainability planning.

Users: hydrologists, environmental engineers, planners.

D. Hydrology & Drainage Layers

• Surface drainage paths (natural & constructed)
• Catchment polygons
• Flow direction & accumulation rasters
• Drainage culvert, ditch, and canal alignments
• Stormwater retention basins
• Proposed graywater reuse networks

Why we need these:

• Hospital must remain flood-proof year-round.
• Housing areas must avoid low-lying basins.
• Factories require dry foundations and predictable runoff.
• Sports zones require engineered drainage.

Users: civil engineers, hydrology teams, site planners.

E. Road, Access, & Mobility Layers

• Existing roads (classified by type)
• Proposed arterial roads
• Internal campus roads
• Pedestrian networks
• Emergency access corridors (hospital priority)
• Bus, shuttle, and mobility hubs
• Helipad & air-ambulance approach zones

Why we need these:

Ensures safe and efficient circulation, emergency response capability, and long-term city functionality.

Users: transportation engineers, hospital logistics planners.

F. Utilities & Infrastructure Layers

• Electrical grid (high, medium, low voltage)
• Solar fields and backup generation locations
• Water supply pipelines
• Wastewater & sewer networks
• Fiber and telecom backbones
• Stormwater piping systems
• Utility easements and service corridors
• Substations and switching nodes

Why we need these:

• Hospital surgical suites require redundant power and secure routing.
• University laboratories depend on reliable water, fiber, and cooling.
• Housing districts must have predictable utility capacity.

Users: MEP engineers, telecom teams, hospital operations, SIP factory engineers.

G. Land Use & District Planning Layers

• Land use master plan polygons
• Zoning classifications
• University district boundaries
• Hospital medical district boundaries
• Sports district & stadium envelope
• Residential zones (high, medium, low density)
• Mixed-use commercial nodes
• Agricultural & green buffers

Purpose:

These layers guide all building placement, construction sequencing, and capacity modeling for transportation, utilities, and energy.

Users: planners, architects, city designers, permitting teams.

H. 3D Engineering Layers

• Building footprints (existing + proposed)
• 3D building massing models
• Cut/fill analysis rasters
• Slope suitability polygons
• Earthwork staging areas
• Crane radius/placement zones (hospital, stadium)

Why we need these:

Large-scale development requires precise terrain and elevation data. This ensures correct placement of the hospital, university buildings, SIP factory, and infrastructure networks.

I. Socio-Economic & Community Layers

• Population distribution
• Service-area catchments (hospital & university)
• Travel time modeling (drive-time isochrones)
• Local school/residential proximity layers
• Market access zones

Purpose:

Helps quantify who will use the district, how people move, where services are needed, and how the development strengthens regional access.

Implementation Notes

• All layers must use a unified coordinate system suitable for Ghana (WGS84 / UTM Zone 30N recommended).
• GIS data must be version-controlled; all edits logged with timestamps.
• A dedicated administrator should maintain the authoritative dataset.
• Hydrology layers must be validated through local rainfall and DEM checks.
• Utility data must reflect as-built conditions once construction begins.