Check traffic conditions and report traffic incidents in Maps on iPhone
You can view traffic conditions and report accidents, hazards, and speed checks (where allowed), and you can report when they’re cleared.
Apple evaluates incoming incident reports. When there’s a high level of confidence in the reports, incident markers—such as for hazards 
and accidents 
—are displayed (or cleared) for other Maps users too.
Speed checks, where supported, aren’t displayed with incident markers. Instead, notifications for speed checks appear when you follow turn-by-turn driving directions.
Note: Not all features are available in all countries and regions. See the iOS and iPadOS Feature Availability website.
Find out about traffic conditions
Go to the Maps app
on your iPhone.With a map showing, tap the button at the top right, choose Driving or Satellite, then tap
.Yellow indicates slowdowns, and red indicates stop-and-go traffic.
To view incident report, tap an incident marker.
Markers indicate incidents such as:
Hazards
Road closures
Road construction
Accidents
Report traffic incidents
Siri: Say something like:
“Report an accident”
“There’s something on the road”
“There’s a speed check here”
Or without using Siri:
Go to the Maps app
on your iPhone.Do one of the following:
When following turn-by-turn driving directions: Tap the route card at the bottom of the screen, tap Report an Incident, then choose an option.
When not following directions: Tap your picture or initials next to the search field, then tap Reports. Tap Report a New Issue, tap Report an Incident, then choose an option.
If neither your picture nor initials appear, tap Cancel next to the search field, or tap the search field, then tap Cancel.
Report on the status of a hazard or accident
When you’re near the incidents in select countries or regions, you can report on their status.
Siri: Say something like: “The hazard is gone” or “Clear the accident.” Learn how to use Siri.
Or without using Siri:
Go to the Maps app
on your iPhone.Tap the incident marker.
Tap Cleared or Still Here.
(You can’t clear reports of speed checks.)