Model Inventory of Roadway Elements – MIRE, Version 1.0

116. Vertical Alignment Feature Type

Definition: Type of vertical alignment feature being described in the data record.

Attributes:

• Vertical angle point (i.e., joining of two vertical gradients without a verticle curve)
• Vertical gradient
• Sag vertical curve (i.e., vertical curve that connects a segment of roadway with a segment of roadway that has a more positive grade)
• Crest vertical curve (i.e., vertical curve that connects a segment of roadway with a segment of roadway that has a more negative grade)

Priority: Critical

HPMS/Tool Requirements: HSM/IHSDM (Required)