# The night network, alone

> Strip out everything that stops at midnight and this is what is left.

- Category: Night city
- Cadence: live
- Status: Live: values change continuously; cite the retrieval time.
- Dataset key: `night-network`
- Source: [TfL Unified API](https://api.tfl.gov.uk/)
- Licence: TfL Open Data Licence — [terms](https://tfl.gov.uk/corporate/terms-and-conditions/transport-data-service)
- Canonical page: [https://londongraph.com/g/night-network](https://londongraph.com/g/night-network)
- Machine-readable record: [https://londongraph.com/data/night-network](https://londongraph.com/data/night-network)

## Methodology

Route geometry for the lines TfL lists as running a Night service, drawn over the rest of the network in outline. Six lines run through the night — five Underground and one Overground — against twenty that do not.

## Visualisations

- [Map](https://londongraph.com/g/night-network): Strip out everything that stops at midnight and this is what is left.

## Citation guidance

Attribute the original publisher named above and identify LondonGraph as the visualisation and methodology layer. Do not describe live values as a historical census, and do not present placeholder values as observations.