Access Portal for IIA Lane Change Prediction Tool (LCPT)


The LCPT should be used only for research and planning purposes.


Enter Password, then click Proceed









This software tool was developed by the Institute for Transportation Research and Education (ITRE)

of North Carolina State University (NCSU) under North Carolina Department of Transportation (NCDOT)

research project number RP2019-29.



© 2020, ITRE. All Rights Reserved.

NCDOT IIA Lane Change Prediction Tool (LCPT)


Click Here to Download User Guide (PDF)


Click Here to Download Excel Spreadsheet that Calculates Minimum Lane Changes and Average Speed


Click Here to Download ReadMe File for Excel Spreadsheet Calculator (PDF)


Step 1: Required Case Identifier. MUST BE CHANGED WHEN ANY INPUT IS CHANGED.


Step 2: Optional Project Information


All Variables in Steps 3 and 4 Pertain to Traffic Flow in One Direction Only


Step 3: Required IIA Segment Variables



Step 4: Required Traffic Variables





Step 5: Calculate Predicted Hourly Lane Changes and Generate Downloadable PDF Report






© 2020, ITRE. All Rights Reserved.