Originally Posted by Paul Kallus:
I think if you don't elect to use the street part that piece creates a smooth transition from level thru the crossing.
PAUL...YOU ARE CORRECT.
From an Ebay auction...
Brand: K Line by LIONEL
Part #: 6-21283
SuperStreets 10" Tubular Traditional Track Grade Crossing
Includes Roadway End Caps for Smooth Transition to Any Layout Road.
Mark