Routing, Accessibility and Networks

We calculate routes over available networks subject to defined distance, connectivity and restriction criteria.

• Routes and Distances over Custom Networks

  Calculate travel costs adapted to a particular network.

  Expected deliverables: Routable topological graph with a PostGIS schema and GPKG nodes and edges; weighted shortest route in GPKG with an SQL cost table; route-cost matrix in CSV with SQL.

We check and correct connection and structural errors in digital routing networks.

• Road Network Connectivity Analysis

  Understand access and the structure of a network.

  Expected deliverables: OSM road network modeled as a graph in GraphML or GPKG with its OSM date; road-centrality map in GPKG with an indicator definition; test routes on the graph in GPKG or CSV.

• Audit of Network Connectivity and Endpoints

  A line network contains gaps, dangling nodes or disconnected segments.

  Expected deliverables: Issue layer and connected-components report.

We delineate areas reachable from specified locations based on calculated travel distance or time.

• Basic Route and Service Area Maps

  Estimate routes along a defined network.

  Expected deliverables: Route/network or service-area map, geometries and stated costs.

We produce tables and maps of distances or route costs between sets of locations.

• Distance Matrix Between Locations

  Compare geometric distances for multiple location pairs.

  Expected deliverables: Pair-distance CSV matrix with verified CRS and method.

• Assignment of Each Location to Its Nearest Service Point

  Link locations to their reference service centers in a table.

  Expected deliverables: Assignment CSV, connecting lines and Euclidean distances.

We examine network structures to identify connections, important nodes and connectivity patterns.

• Analysis of Network Relationships and Centrality

  Examine complex relationships among locations and organizations.

  Expected deliverables: Graph-indicator table in CSV with a data dictionary; mapped network communities in GPKG and PDF; non-geographic network diagram in GEXF, SVG or PDF.

• Comparison of Centrality Using Two Metrics

  Compare measures of node position in an established network.

  Expected deliverables: CSV with two metrics and a node-level discrepancy map.

• Mapped Nodes and Links with Attributes

  Display graph data and connections clearly.

  Expected deliverables: Network map or diagram, node/edge tables and legend.

We extract, organize and transform street, path and network data for further analysis.

• Preparation of OSM Layers as a Routable Network

  Prepare OpenStreetMap lines for route calculation.

  Expected deliverables: Network with nodes, edges and documented cost attributes.

• Route Table Between Points for External Exchange

  Provide another team with predefined route geometry and calculated costs.

  Expected deliverables: GPKG and CSV of routes and costs, with endpoint validation.