Related Clues:

• Station info, briefly
• Mail carriers' assignments: Abbr.
• Driving-directions listings: Abbr.
• Heraclitus's H's
• Rural rds.
• Travel options: Abbr.
• Pilots' guesses, for short
• Letters from Thessaloniki
• Itinerary data: Abbr.
• Incoming-plane stats.
• GPS lines
• LAX figures
• GPS data
• When planes are due, for short
• Some nos. on maps