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Trapeze4 multi-modal scheduling system is a map-based transit scheduling software system that accommodates fixed route, demand response, and flex route modes of transit service in one integrated environment.
About Demographic Analysis Requirements
Demographic Analysis requires two elements of data: a polygon map layer that describes the map coordinates of bounded regions and a data source that contains data associated with those polygons.
About Location Analysis Requirements
Location Analysis is similar to Demographic Analysis. Instead of polygons, the geographic elements are point locations.
About This Guide
The PLAN Spatial Analysis User Guide provides step-by-step procedures on using the system to perform spatial analysis. It is not intended to answer complex or site-specific questions. For specific questions, contact your Trapeze representative.
Accessing the Spatial Analysis Screen
You can open the Spatial Analysis screen through the Task menu or the main toolbar.
The first step in preparing for spatial analysis is to select the geographic areas for analysis. You can select areas to analyze by creating buffers around the routes or locations or by selecting established geographic areas.
Setting Buffers Using Fixed Routes
You can select geographic areas for analysis by creating buffers around fixed routes.
Setting Buffers Using Polygons
Polygons are established or enclosed geographic areas such as counties, airports, and parks. When you select geographic areas for analysis using polygons, you do not actually create buffered areas around polygons.
Setting Buffers Using Locations
Locations refer to places that have been listed together since they are of similar nature or have similar attributes.
About Buffers with Routes and Points
In addition to the predefined geographic attributes found in the Trapeze4 database, you can define "on the fly" route traces, or temporary routes, and point locations by clicking on the map.
Saving Buffer Files
Saving the buffer file includes all of the items in the buffers list and any associated property settings.
Loading Buffer Files
Loading a buffer file does not overwrite any other buffer file listed on the Buffers tab; it merely adds the file to the list.
Changing Buffers
Once you have established buffers, select an individual buffer if you wish to change it.
Polygon Clipping
A polygon is a contained area on the system map that is defined by the user. Polygons and polygon boundaries help develop service routes as well as determine client mobility within the service area. These are defined in Trapeze PASS.
Changing the Appearance of Analysis Points on the Map
The Map tab of the PLAN Options dialog box allows you to change the appearance of some analysis points on the map. This helps to emphasize the point and make it easier to view.
Location Analysis uses geographic and attribute data to determine the number of locations that are within the proximity of routes and inside or outside of polygons.
About the Point Location Query
Point Location Query uses Structured Query Language (SQL), which is a standardized query language that allows you to generate information from the data that is stored in relational databases such as those used in PLAN, PASS, INFO-Web, and other Trapeze applications.
Performing (General) Analyses
You can perform a general analysis of locations using the Locations tab in the PLAN Options dialog box.
About Viewing Location Analysis Results
After running an analysis, you can view the results in the Spatial Analysis screen.
Spatial Analysis is a form of thematic mapping that offers quick access to demographic data for a given service area.
Setting Up the Demographic Analysis
You can set up your demographic analysis in two steps on the Demographics tab of the Plan Options dialog box.
About Demographic Analysis of Selected Area
The basic method of performing demographic analysis is to define a geographic area to study on the Buffers tab of the PLAN Options dialog box and then select the required variables from those that are available (attribute data) on the Demographic tab.
About Demographic Analysis with Demand Forecasting
In Demographic Analysis, the Demand Forecasting feature helps to examine how changes to the system may affect ridership.
Comparing Demographic Analysis Results
You can compare demographic analyses with demand forecasts.
Performing "What If" Demand Forecast Analysis
You can perform "what if" demand forecast analysis by changing various elastic factors.
Viewing the Demographic Analysis Results in Multiple Ways
You can choose to view the results of the demographic analysis in different ways.
One of the unique options within PLAN is the ability to spatially analyze your historical PASS data. This ability can also be used to assess Flex Route possibilities based on the data at hand.
Running PASS Booking Analysis
You can perform a PASS Booking Analysis using the Booking Selection dialog box.
Viewing Summary and Selected Records
You can view the number of clients and bookings in the analysis. You can also view the trips taken by the selected client during the time specified for the analysis based on selected filters.
Viewing Results on Map
You can view the trips that fit your criteria from the system map.
Viewing Client Records on Locations Tab
After you process an analysis, the Locations tab in the Spatial Analysis screen displays the client records that were retrieved by the analysis.
Results can be exported into other Windows™ based programs for data manipulation, presentation, and printing. The map and data from both the Summary and Demographic tabs can be exported.
Exporting Demographic Data
The exported file is ASCII comma and quote delimited and ready for import into most applications. Each field of data is separated by a comma.
Exporting Locations Data
You can export data on the Locations tab in the Spatial Analysis screen. The exported location file is ASCII comma and quote delimited and ready for import into most applications. Each field of data is separated by a comma.
Exporting Map Data
Use the Print Map feature to export the map data.
Exporting Summary Data
If you require the analysis results in another format, you can copy and paste it into the appropriate application.