Why are there so many files with the same file names, mb2004 and Taz?
To efficiently manage information pertaining to a layer, a GIS usually divides the information into different files. It takes all the files with the name of mb2004 to generate the Miasma Beach network in transcad. If you want to work from a different directory or computer, you must copy the entire set of files.
1.1 Create Base Miasma Map
Construct the transcad "map" file which contains the GIS data for the Base Year 2004 Transportation System T and the Activity System A.
1.1.1 Open a Geographic File
Go to File / Open. On the File Open dialog box, select the drive and directory where you store your files (mb2004.* and Taz.*). Select Geographic File under the List Files of Type. You should see MB2004.DBD and TAZ.DBD in the file box. Select MB2004.DBD and click OK.
You should now see a "stick" network in front of you. The network does not contain end points and intersecting points. To see them, go to Map / Layers. On the Layers dialog box, under Layers in Order of Display, select Nodes (it is hidden now) and click the Show Layer button. Close this dialog box.
Exercises:
- Change color and style of the streets
- Hide streets
- Label each street with its name (Hint: All you need is the Layers dialog Box)
1.1.2 Add Another Layer
Go to Map / Layer again. Click the
