240028: Cannot use cartographic shapes for the output because the ID field in the public transit data model's LVEShapes feature class has all null values.

Description

When calculating transit service frequency statistics for transit lines with the Calculate Transit Service Frequency tool, the tool can't output cartographic shapes for enhanced visualization because the input public transit data model optional LVEShapes feature class exists but has all null values in the required ID field.

Solution

Use straight lines for the output, correct the data, or re-create the public transit data model feature classes and tables using the GTFS To Public Transit Data Model tool with the option to create the LVEShapes feature class from the GTFS shapes.txt file.