Service Area Analysis

Instructions for use

Service Area Analysis mainly analyzes the service scope of service facilities and provides decision-making for business analysis. General service facilities have their own Service Radius, for example, different types of shopping malls have their own Service Radius (service area). During Network Analysis, the nodes with resources on the network are abstracted as service sites, and the maximum range distance of the service sites is abstracted as Service Radius. After successful analysis, the service network and service area (polygon) of the service sites are obtained. Service Area Analysis can be understood as a Resource Allocation that does not consider the central resource supply and demand, but only considers the resistance of the network arc between the supplier and the demander. This kind of analysis is generally used to evaluate and analyze the service scope of public facilities such as post offices, hospitals and supermarkets in a certain location, so as to provide reference for selecting the best location of public facilities. For more information about Service Area Analysis, see the Service Area Analysis Overview page.

Operation steps

  1. Open the Network Dataset for Network Analysis.
  2. On the Traffic Analysis tab, in the Road Network Analysis group, select the Environment Settings check box to bring up the Environment Settings window. Set Network AnalysisBasic Parameters (such as Weight Field, node/Edge ID Field, etc.) In this window. Analyst Result parameters and parameters for tracking analysis (Facility Network Analysis needs to be set). For an introduction to the Environment Settings window, see Network AnalysisEn vironment Settings window Page.
  3. Create a new instance of Service Area Analysis. On the Traffic Analysis tab, in the Road Network Analysis group, click the GallyeryDrop-down Button and select the Service Area Analysis item from the drop-down box. After the instance is successfully created, the Instance Management window automatically pops up. For an introduction to the Instance Management window, see the Instance Management window page.
  4. Add a service station in the current network layer. A service station is a facility that provides services. Service Area Analysis takes the service station as the central point for analysis. There are two ways to add a service station. One is to add a service station by clicking the mouse in the Network Data layer. The other is to import the point data. The point object in the Point Dataset is imported as a service station. See the Add site dialog box for details.

    Note: When the Application performs Service Area Analysis, the Analyst Result is not related to the order of the imported service stations. To delete a service station, select the Service Station directory node in the Instance Management window, and select Remove in the pop-up Context Menu, or select the service station to be deleted and press the Delete key.

  5. In the same way, you can set up barrier points for Service Area Analysis. Barrier point management can be found on the barrier point management page.
  6. Click the Parameter Settings "button in the Network Analysis Instance Management window to pop up the Service Area Analysis Settings dialog box to set the Analysis Parameters.
    • Service Radius: Service radius of the service station. Click the list box cell to enter the radius value. Its units are consistent with the units of the Forward/Reverse Weight Field in the network environment window. You can set different Service Radius for each service station, or use the United Value Settings function to Uniform Settings Service Radius for all sites.
    • Analyze from center stop: Set the direction of Service Area Analysis. Analyze from center stop. Analyze from center stop refers to a service center providing services to the service demand (for example, a milk station delivering milk to the public), while not analyze from center stop refers to a service demand taking the initiative to obtain services from the service center (for example, students studying at school).
    • Service Stop Mutex: If two or more adjacent service areas overlap, select this check box to perform mutual exclusion processing on them; otherwise, do not perform mutual exclusion processing.
    • Generate Route: Whether to generate route data during Service Area Analysis. Select this check box to generate both the service area face data and the route Result Data; otherwise, only the service area face Result Data will be generated.
    • Generate Complex Area: Generate Complex Area is supported during Service Area Analysis. If this check box is checked, the generated Analyst Result will generate the face contour result strictly according to the Generate Route, and the Analyst Result will be more accurate.
    • Result Settings

      Save Stop Info: Select whether to save all node information of service coverage area in Analyst Result. If Save Node Information is selected, save the node as a Point Dataset and give it a name. The Dataset will be saved under the Datasource where the Network Dataset is located. The field NodeID represents the routing Node ID of the service coverage area in the Analyst Result.

      Save arc segment information: Select whether to save all arc segment information of service coverage area in Analyst Result. If the Save Arc Segment Information check box is selected, it is saved as a Line Dataset with a name, and the Dataset is saved to the Datasource where the Network Dataset is located. Wherein the field EdgeID represents the routing line identification of the analyzed service coverage area.

      • When

      Parameter Settings is complete, click OK to exit the Service Area Analysis Settings dialog box.

  7. When all Parameter Settings are complete, click the Execute button in the Road Network Analysis group on the Traffic Analysis tab or the Execute button on the Instance Management window. Make an analysis. The Analyst Result is displayed immediately in the Map. Analyst Results can be Save as Dataset for use elsewhere.

Precautions

  • The service stations may be in the vicinity of or within the tolerances of network arcs and network nodes.
  • For service Stop Info, it can be exported to Point Dataset so that it can be directly imported and used in other Network Analysis.
  • If obstructing points are set in a Network Analysis layer, the obstructing point information is displayed in the Network Analysis management window, and the obstructing points can be managed in this window. Refer to the Barrier point management for instructions on how to add obstacle points.

Related topics

Service Area Analysis Overview