Related Clues:

• Urban rail systems
• Old English measures equal to 45 inches
• Urban carriers
• Right-angle joints
• Pro golfer Ernie
• Mass transit choices
• Room extensions
• 'The Big Easy' of golf
• Two-time U.S. Open winner Ernie
• Pipe turns
• Letters before ems
• Tall golfer Ernie
• High lines
• The Big Easy
• Ways around Chi-town