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Label Expressions
A label expression is an expression that returns a string, and is used to label network elements. The expression consists of a set of operators, functions and keywords.
Some example label expressions are as follows:
Centroids and Nodes
[Node Number] i
[X and Y] str(x) + ',' + str(y)
Links
[Modes on link] mode
[Volume delay function] vdf
Transit Lines and Segments
[Line description] ldesc
[Line headway] hdwy
[Default Speed] speed
Turns
[Auto Volumes on Turns] pvolau
[Volume delay function of incoming link] vdf