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TransCAD. Route Systems. Routes. Each route in a route system is defined as a series of one or more line features. The route system is one map layer, and the line features are stored in another layer in the map. Here are some examples:
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TransCAD Route Systems
Routes • Each route in a route system is defined as a series of one or more line features. The route system is one map layer, and the line features are stored in another layer in the map. Here are some examples: • A designated highway route composed of a series of highway line features • A truck route based on a series of streets between delivery points • A bus route defined by the series of streets over which the bus travels • A subway route operating over elevated, surface, and underground rail line features
Routes • When defining a route system, each line feature that is part of a route is referred to as a segment. Every route is made up of a series of segments. Several routes in a route system may operate on the same segment. A route can also include segments more than once. A route can be continuous, with all of its segments connected to each other. A route can also have gaps or spaces in it. • A route system can have: • No stops, such as a highway inventory • Route stops, such as truck routes with delivery points • Physical stops and route stops, such as a bus system or railroad with stations, time points, etc.
Physical Stops • In TransCAD, physical stops are inventory of places where route stops can occur. They are most often used for transit or rail routes and indicate the locations of stations, junctions, or signs along the routes. • If the route system has physical stops, then route stops must be at physical stops. If you want to add a route stop where there is no physical stop, or move a route stop to where there is no physical stop, TransCAD will ask you to enter information for a new physical stop first.
Creating and Editing a Route System • There are four basic steps you need to follow to create a route system: • Identify or create the line layer on which the route system will be based • Create a network file for the area covered by the route system • Create an empty route system file using the File-New command • Use the Route System toolbox to create and edit the routes
Setting the Route System Edit Options • The route system edit method gives you two ways to indicate where a route should go: • Shortest Path uses a network file to find the segments on the shortest path, based on a field that you specify, between the points that you indicate along the route. • Click Segments lets you indicate the specific segments that the route should follow. You must be sure that the segments form a continuous path, and that you do not go the wrong way on a one-way segment.
To Create a New Route Add a new route Save or Cancel the routes changes
To Add a Duplicate of an Existing Route You may make changes on the new route before save it. Click on a saved route
To Add the Reverse of an Existing Route Pick a route Save the new route
To Delete One or More Routes Click Save to make sure the route is deleted.
To Add Routes to the Editing Buffer Pick a route to edit To drop a selected route
To Realign One or More Selected Routes Before you use this instruction, you have to select a route first Click on the point on the route where the realignment will begin, click on additional points as needed, and double-click on the point on the route where the realignment will end.
To Find a Route and Get Driving Directions Get driving directions
To Modify the Structure of the Route, Segment, or Stop Tables
To Convert a Route System or Stop Layer to a Geographic File
To Compact a Route System This may largely reduce the size of the route system.
