- Traffic Signals

Michigan.gov Home	MDOT Home \| Site Map \| Contact MDOT \| FAQ \| State Web Sites

Printer Friendly Text Only Version




Traffic Signals

	What does a flashing yellow left-arrow signal mean?

	What is the law on mobile infrared transmitters (MIRT) that can change traffic signal lights?

	Who do I call when a signal is not working?

	Who do I talk to about getting a traffic signal for an intersection?

	How is a traffic signal request evaluated? Why not just install a signal when citizens ask?

	Why does a traffic signal study take so long?

	Where can I get information about Traffic Signals?

	How big are traffic signals? How many lightbulbs do they require?

	Where can I obtain a program to calculate Signal Spans and Stem Length (Usable Sag)?

	FAQ Categories
•	About MDOT
•	Auctions
•	Bids & Contracts
•	Bridges
•	Bridge Operations
•	Construction
•	Construction Permits
•	Construction & Technology
•	Courtesy Patrol
•	Driver Information
•	Freedom of Information Act
•	Highway Advertising Signs
•	Highway Maintenance
•	Local Agency Programs
•	Logo Signs & Tourist-Oriented Signs
•	Mackinac Bridge
•	MiRLAP
•	Political Signs
•	Potholes
•	Rail Safety
•	Rideshare
•	Roads
•	Safety Programs
•	Traffic Signals
•	Traffic Signs & Delineation
•	Traffic & Safety
•	Workzone Speed Limits