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| title | layout | published_date | slug | is_draft | description |
|---|---|---|---|---|---|
| 2021 SEPTA Budget Breakdown | post.liquid | 2022-07-18 00:00:00 +0000 | septa_budget | false | Philadelphia's transit agency SEPTA 2021 Budget numbers turned into a Sankey visualization. |
2021 SEPTA Budget Breakdown
Published in July 2022
Every year Philadelphia's transit agency septa{% capture sidenote %}SouthEastern Pennsylvania Transportation Authority.{% endcapture %}{% include "sidenote.liquid" %} publishes budget figures.{% capture sidenote %}The reports page with many PDFs for download including the 2021 budget: https://planning.septa.org/reports/ (archived link).{% endcapture %}{% include "sidenote.liquid" %} There is a lot of information in the document, both a high level table and many further breakdowns.
I thought it would be interesting to read through the numbers and build a Sankey diagram{% capture sidenote %}https://en.wikipedia.org/wiki/Sankey_diagram{% endcapture %}{% include "sidenote.liquid" %} showing several levels of expenses and revenue broken down by category.
Starting at the highest level this is the top level budget for the entire organization:
2021 Budget Breakdown
| Revenue | Amount in Thousands |
|---|---|
| Passenger Revenue | 480,574 |
| Shared Ride Program | 16,250 |
| Other Income | 42,188 |
| Investment Income | 2,756 |
| --------- | |
| Total Operating Revenue | 541,768 |
| Subsidy | |
|---|---|
| Federal | 93,028 |
| State | 779,377 |
| Local | 112,451 |
| Other | 4,360 |
| --------- | |
| Total Subsidy | 989,216 |
| Expenses | |
|---|---|
| Labor and Fringe Benefits | 1,088,773 |
| Material and Services | 331,432 |
| Injury and Damage Claims | 24,711 |
| Propulsion Power | 27,313 |
| Fuel | 26,026 |
| Vehicle and Facility Rentals | 8,854 |
| --------- | |
| Operating Expense | 1,507,109 |
| Depreciation/Contributed Capital | 23,875 |
| --------- | |
| Total Expenses | 1,530,984 |
Note that the subsidies (mostly from the state of Pennsylvania) exactly cover the gap between expenses and revenue.
I found the high level table a little lacking in detail, so I read further and tried to pull out numbers from the various breakdown tables in the document and align them to the overview table so we can see more detail of where money is coming from and where it's spent.
Here is a visualization of the budget as a Sankey diagram:
- Click the image for a larger interactive view.
- Download the chart as an image SEPTA_2021_Budget_sankey.png
This represents my best-guess understanding at the data as-is from the PDF.