Related Clues:

• Urban rail systems
• Urban carriers
• Pro golfer Ernie
• Mass transit choices
• 'The Big Easy' of golf
• Two-time U.S. Open winner Ernie
• Letters before ems
• Tall golfer Ernie
• Subways
• High lines
• The Big Easy
• Ways around Chi-town
• Cars over the road
• ''Toddling Town'' trains
• High carriers