Related Clues:

• Corner feature
• It brings traffic to a standstill
• Octagonal warning
• Reason to hit the brakes
• Traffic signal
• Familiar octagon
• Traffic control
• Light alternative
• Red and white halter?
• Traffic-light alternative
• Red alert?
• Curbside octagon
• Intersection feature
• Red signal, first sign of one's dangerous situation on street
• Fellow worker accepting new contract