A day in the life of Philadelphia, by 311 call

Philadelphia's 311 line takes calls every hour of every day, and the texture of those calls shifts by the hour. The same city dispatcher who hears about an abandoned car at 7 AM is fielding noise-adjacent maintenance complaints by 10 PM. Looked at over a year, the rhythm of those calls is surprisingly consistent — and surprisingly readable. This is what a day in Philadelphia sounds like through the lens of the people who pick up the phone.

Across roughly 1,153,532 calls in the top dozen categories since 2024-01-01, the catch-all "Information Request" line dominates by a wide margin — most calls to 311 are not complaints at all, just questions for the city. The narrative and the chart below set Information Request aside and look only at the complaint categories, where the hourly pattern is more revealing.

From dawn to midnight

1. Predawn (4–7 AM)

   The dominant call is Abandoned Vehicle (20% of complaint calls in this band). Followed by Street Light Outage and Maintenance Complaint.

2. Morning rush (7–10 AM)

   The dominant call is Abandoned Vehicle (22% of complaint calls in this band). Followed by Maintenance Complaint and Illegal Dumping.

3. Midday (10 AM–2 PM)

   The dominant call is Rubbish/Recyclable Material Collection (20% of complaint calls in this band). Followed by Maintenance Complaint and Abandoned Vehicle.

4. Afternoon (2–6 PM)

   The dominant call is Maintenance Complaint (21% of complaint calls in this band). Followed by Rubbish/Recyclable Material Collection and Abandoned Vehicle.

5. Evening (6–10 PM)

   The dominant call is Maintenance Complaint (19% of complaint calls in this band). Followed by Rubbish/Recyclable Material Collection and Abandoned Vehicle.

6. Late night (10 PM–4 AM)

   The dominant call is Rubbish/Recyclable Material Collection (21% of complaint calls in this band). Followed by Abandoned Vehicle and Maintenance Complaint.

The 24-hour clock

Each card below shows one category's 24-hour rhythm — a sparkline of how its call volume rises and falls between midnight and midnight. The sparklines self-normalize, so the height represents shape, not volume; the peak hour is annotated. Read across to spot which categories share a rhythm and which don't.

The week, two ways

The sparkline grid hides what the week does to the rhythm. Here are two categories whose weekday-vs-weekend signatures pull in opposite directions: Construction Complaints falls off a cliff on Saturday and Sunday because the construction itself stops, while Illegal Dumping reports spike on Mondays — the weekend's discarded couches and bagged debris get reported on the way to work.

Each cell is the count of calls in that day-and-hour combination, summed across the window above. Darker = more calls. The y-axis is Sunday through Saturday; the x-axis is hour of day, midnight to 11 PM. Hover any cell for the exact count.

Holiday signatures

Specific dates leave a fingerprint on the data. The cards below show the top categories on each of these holidays, summed across 2022, 2023, 2024. Total volume is much lower than an ordinary day because city call centers run reduced hours on holidays — what these cards surface is the mix, not a "% above normal" rate.

Every kind of trouble has its hour

The hourly rhythm is the city's calling rhythm, not the city's problem rhythm. Streetlight reports cluster around dusk because that's when residents notice outages on the walk home; the bulbs themselves probably burned out hours earlier. Construction complaints stop on Saturdays because the construction does, not because residents have stopped caring. Holiday call mix shifts because the people calling have shifted: less commuting, more being home. The data is legible — but the thing it's most legible about is the people on the phone.