XX --------- XX
 
 
  LOWEST COMBINATION OF TPM
 
Some gaps do not have a TPM if no service operates between these points. When you cannot find a published TPM to close the gap, you may establish the TPM by the lowest combination of TPMs over a fictitious (non-ticketed) point.
 
     
     
             
             
             
             
             
     
     
 
  TRAVEL TERMINOLOGY
 
 
  ALPHABETICAL WISE