Ann Arbor Traffic and Road Conditions
Ann Arbor Traffic Map
How to use the Ann Arbor Traffic Map
Traffic flow lines: Red lines = Heavy traffic flow, Yellow/Orange lines = Medium flow and Green = normal traffic. Black lines or No traffic flow lines could indicate a closed road, but in most cases it means that either there is not enough vehicle flow to register or traffic isn't monitored. Also, If you do not see traffic flow, you can zoom in closer to reveal localized data. If you are unable to pan the map, press here (to focus off of the map) and try again.
Traffic Incidents (beta): Each dot represents a traffic event or incident such as road construction, closure or accident. At closer zoom levels, those dots can be pressed to see more info. Once a layer of traffic info has popped-up, be sure to press/click any additional arrows (e.g. 1 of 3) in the top right above the title to see further details of the impact.
Impact Legend: 
Critical 
Major 
Minor 
Low
Traffic Alert
- Click or touch the map to move in different directions.
- If you do not see any markers on the map, try zooming in one or two levels using "+" on the top left side. However, they are not always available.
- Click an incident icon on the map to get more information.
Ann Arbor Traffic Alerts
MDOT - Ann Arbor on Twitter
SB I-75 Exit to Nadeau Rd Exit 18 All Lanes Open Monroe county
RT @MichiganDOT: ICYMI: On the latest edition of the Talking Michigan Transportation podcast, Andy Doctoroff discusses his @freep op-ed (ht…
RT @MichiganDOT: The first #AdoptAHighway pickup of the year for the southern half of the Lower Peninsula begins this Saturday! The first p…
SB I-75 Exit to Nadeau Rd Exit 18 Exit Closed Due to Debris Monroe County
Michigan DOT on Twitter
RT @MDOT_A2: SB I-75 Exit to Nadeau Rd Exit 18 All Lanes Open Monroe county
Today, @GovWhitmer visited the SB I-196 rebuilding project in #AlleganCounty. The majority of this work is funded b… https://t.co/R6zWSAgzKr
RT @MDOT_A2: SB I-75 Exit to Nadeau Rd Exit 18 Exit Closed Due to Debris Monroe County
RT @MDOT_Traverse: How did this U.S. city achieve zero traffic deaths for 3 straight years? Things like adding bike facilities and widening…
RT @mackinacbridge: Construction on the #MackinacBridge. Be prepared for lane closures and slowdowns. Use appropriate caution.
@CodyGodfrey Looks like that's a Genesee County Road Commission project since those are both local roads. (MDOT has… https://t.co/VcWjGGvAoN
ICYMI: On the latest edition of the Talking Michigan Transportation podcast, Andy Doctoroff discusses his @freep op… https://t.co/4uqT0wDBpB
M-53 resurfacing in Lapeer and Sanilac counties starts April 19 https://t.co/hLbap6m82e
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