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FSUTMS Comprehensive Modeling Workshop - Cambridge ...

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GIS Tools<br />

►Functions (Cont’d)<br />

True Shape Display – Changes the network link<br />

display to show the true shape of a link based on<br />

one or more shapes in the shape file instead of a<br />

straight line (converts stick network to curved<br />

network).<br />

Line shape database (.dbf) file must include A node and<br />

B node numbers.<br />

For links with more than one shape, the .dbf file must<br />

include a sequence field indicating the sequence of the<br />

line shapes.<br />

<strong>FSUTMS</strong>--CUBE MODELING TRAINING SERIES<br />

9<br />

GIS Tools<br />

► Functions (Cont’d)<br />

Build Network from Shapefile – Generates a<br />

corresponding highway network from a line shape file<br />

with automatic node numbering.<br />

The shape .dbf file must have an A node and B node field.<br />

Shapes in shape file can be treated as all one-way links or all<br />

two-way way links. Or, a field in the shape file can be used to<br />

indicate one-way and two-way way shapes.<br />

If line shapes were not digitized in the direction of travel, one-<br />

way links will be created in the wrong direction. To correct this,<br />

the Reverse Line Shape function can be used.<br />

<strong>FSUTMS</strong>--CUBE MODELING TRAINING SERIES<br />

10<br />

11-5

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