CitySignal Index · What happened · Sep 16 to Oct 13
26,399 road incidents. Four weeks. 13 cities.
What actually happened on the roads, sorted the same way in every city: crashes, stalled cars, debris, closures. About 943 a day.
- 30%were crashes
- 21%were stalled vehicles
- 17%were hazards and debris
The mix, city by city
Each bar is one city's last four weeks, out of 100. Tap a city to open it.
- Crashes
- Stalled vehicles
- Hazards and debris
- Closures
- Vehicle fires
- Everything else
- Type not given
Grey stripes mean a city's reports did not say what happened; we show that rather than guess. Totals depend on how much of each city the reports cover, so compare the mix and the timing, not one city's total against another's.
Atlanta
172 a day · most often hazards and debris
When they happen
Every hour of the week, darker is busier.
Busiest: Wednesday 8 AM. Quietest: Monday 3 AM.
79% of Atlanta's road incidents do not say what happened, so they are counted as Type not given rather than guessed.
Reading the hour…
The same hour of the week, averaged over the last four weeks.
Every day
Busiest day: Sat, Oct 10, 256.
How long they last
Median time from the first report to the all clear.
- Stalled vehicles37 min
- Hazards and debris39 min
- Closures1.9 h
Where
The roads with the most, and what kind.
- I-75 North271
- I-85 North269
- I-285 West253
- I-20 West251
- I-285 North207
- I-285 South173
How much road it took
Atlanta's road reports rarely say which lanes were blocked, so this stays empty rather than guessed.
Ask your assistant
“What kind of incidents hit Atlanta on Friday evenings?”
Connect CitySignalHow we count
The same reports as each city's tracker, over the last 28 complete days, sorted by one set of rules per category. On the roads, abandoned vehicles, planned work and events are left out; everywhere, status updates such as “lanes reopened” or “power restored” and news stories are left out. Reports that do not say what happened are counted as Type not given, never guessed. Power outages are sorted by how many customers lost power, because the cause is rarely given.
How long they last is the median time a report stayed up, from the first report to the end. “This hour” is the average for the same hour of the week over the four weeks, in the city's own time. Updated through the day.