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Objectives
The objectives of this lab are to introduce route system, and to work with route systems in TransCAD.
Route Systems
A route is a series of line segments that has at least one common attribute, such as a route number, a service frequency, and so on (eg. designated highway route, truck route between delivery points, bus route, and subway route).
Selected features from a regular line layer (highway, streets, railroads) are used to define a route. 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.
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Practice #1: Create a route system
To create a route system, you must open a line layer, on which the routes are based, and create a network based on the line layer.
______ Copy the directory H:\GEO520Lab\Lab8\Practice to your own space, and open geographic file ubroads in your space.
______ Create a Network based on ubroads (use Network/paths-Create), name it ubnet and save it in your own space.
_____ Make sure Road Features is active and the current network is ubnet
______ Choose File-New or click <!--[if !vml]--> <!--[endif]--> on the toolbar to display the New File dialog box.
______ Choose Route System and click OK to display the New Route System dialog box.
______ Click Route Stops under Options.
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_____ Click Route Table… to create an attribute table for links of route system.
_____ When New Table windows pops up, add a field and name it as Passenger (# of passengers).
_____ Ok; (this will bring you back to the previous window)
_____ Ok
_____ Save the route system file to your own space, say myroute
Now the route system should be the working layer (visible in the layer drop-down list). However, for the time being, it is still an empty layer. (Look into the dataview of the layer Route System to see if it’s the case). You can also see the Route Stops layer in the layer drop-down list since you choose to create the stop.
____ Choose Procedures-Route systems to activate the Route Systems menu if it is not the choice of the menu.
____ Choose Route Systems-Editing Toolbox to popup the route system edit toolbox. Move the mouse pointer through each of the tools in the toolbox and make sure you understand the meaning of them: add a new route, select a route, add reverse of the route;
____ Click <!--[if !vml]--> <!--[endif]-->, then click on the intersection between Niagara Falls Boulevard/I-290 and double-click on the intersection between I-290/Main St. TransCAD displays the New Route Name dialog box.
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