README.md

---
license: cc-by-sa-4.0
task_categories:
- image-classification
- image-segmentation
- image-feature-extraction
language:
- en
tags:
- street view imagery
- open data
- data fusion
- urban analytics
- GeoAI
- volunteered geographic information
- machine learning
- spatial data infrastructure
- geospatial
size_categories:
- 1M<n<10M
---

# Global Streetscapes

Repository for the tabular portion of the [Global Streetscapes dataset](https://ual.sg/project/global-streetscapes/) by the [Urban Analytics Lab (UAL)](https://ual.sg/) at the National University of Singapore (NUS).

## Content Breakdown
```
Global Streetscapes (74 GB)
├── data/ (49 GB)
│   ├── 21 CSV files with 346 unique features in total and 10M rows each (37 GB)
│   ├── parquet/ (12 GB) (New)
│       ├── 21 Parquet equivalents of the 21 CSV files (New)    
│       ├── 1 combined Parquet file (New)
├── manual_labels/ (23 GB)
│   ├── train/
│   │   ├── 8 CSV files with manual labels for contextual attributes (training)
│   ├── test/
│   │   ├── 8 CSV files with manual labels for contextual attributes (testing)
│   ├── img/
│       ├── 7 tar.gz files containing images for training and testing
├── models/ (2.8 GB)
│   ├── Trained models in checkpoint format
├── cities688.csv
│   ├── Basic information for the 688 cities including population, continent, and image count
├── info.csv
    ├── Overview of CSV files in `/data/` with description of each feature
```

## Download Instructions
Please follow this [guide](https://huggingface.co/docs/huggingface_hub/guides/download) from Hugging Face for download instructions. Please avoid using 'git clone' to download the repo as Git stores the files twice and will double the disk space usage.

We have also provided a script `download_folder.py` to download a specifc folder from this dataset, instead of just a single file or the entire dataset.

To download the imagery portion (10 million images, ~6TB), please follow the code and documentation in our [GitHub repo](https://github.com/ualsg/global-streetscapes).
Our [Wiki](https://github.com/ualsg/global-streetscapes/wiki/2-Download-images) contains instructions and a demo on how to filter the dataset for a subset of data of your interest and download the image files for them.

## Read More

Read more about this project on [its website](https://ual.sg/project/global-streetscapes/), which includes an overview of this effort together with the background, [paper](https://doi.org/10.1016/j.isprsjprs.2024.06.023), examples, and FAQ.

A free version (postprint / author-accepted manuscript) can be downloaded [here](https://ual.sg/publication/2024-global-streetscapes/).

## Citation

To cite this work, please refer to the [paper](https://doi.org/10.1016/j.isprsjprs.2024.06.023):

Hou Y, Quintana M, Khomiakov M, Yap W, Ouyang J, Ito K, Wang Z, Zhao T, Biljecki F (2024): Global Streetscapes — A comprehensive dataset of 10 million street-level images across 688 cities for urban science and analytics. ISPRS Journal of Photogrammetry and Remote Sensing 215: 216-238. doi:[10.1016/j.isprsjprs.2024.06.023](https://doi.org/10.1016/j.isprsjprs.2024.06.023)

BibTeX:
```
@article{2024_global_streetscapes,
 author = {Hou, Yujun and Quintana, Matias and Khomiakov, Maxim and Yap, Winston and Ouyang, Jiani and Ito, Koichi and Wang, Zeyu and Zhao, Tianhong and Biljecki, Filip},
 doi = {10.1016/j.isprsjprs.2024.06.023},
 journal = {ISPRS Journal of Photogrammetry and Remote Sensing},
 pages = {216-238},
 title = {Global Streetscapes -- A comprehensive dataset of 10 million street-level images across 688 cities for urban science and analytics},
 volume = {215},
 year = {2024}
}
```

## Contribution Guide
We welcome contributions to this dataset! Please follow these steps:

1. **Propose changes**:
   - Open a [discussion](https://huggingface.co/datasets/NUS-UAL/global-streetscapes/discussions) in the repository to describe your proposed changes or additions.
   - We will revert with specifics on how we would like your contributions to be incorporated (e.g. which folder to add your files), to maintain a neat organisation.

2. **File naming**:
   - Use meaningful and descriptive file names.

3. **Submit changes**:
   - Fork the repository, implement your changes, and submit a pull request (PR). In your PR, include an informative description of your changes (e.g. explaining their structure, features, and purpose) and how you would like to be credited.

Upon merging your PR, we will update the `Changelog` and `Content Breakdown` on this Dataset Card accordingly to reflect the changes and contributors.

For any questions, please contact us via [Discussions](https://huggingface.co/datasets/NUS-UAL/global-streetscapes/discussions).

## Changelog

**2025-02-19**

**Added:**

- New [data/parquet/](https://huggingface.co/datasets/NUS-UAL/global-streetscapes/tree/main/data/parquet) folder containing Parquet files for improved efficiency in large-scale data processing.
  - 21 Parquet equivalents of the 21 CSV files
  - 1 Parquet combining contextual.csv, metadata_common_attributes.csv, segmentation.csv, simplemaps.csv, ghsl.csv, perception.csv, places365.csv, and osm.csv

**Change contributed by:**

Donnelly, C., Hadjiivanov, A., & Kalverla, P. (2024). streetscapes. Zenodo. [https://doi.org/10.5281/zenodo.14283533](https://doi.org/10.5281/zenodo.14283533)

**Refs:**

[PR #6](https://huggingface.co/datasets/NUS-UAL/global-streetscapes/discussions/6) [Discussion #5](https://huggingface.co/datasets/NUS-UAL/global-streetscapes/discussions/5)