[data request] Mapillary Traffic Sign Dataset (research)

• Name of dataset: Mapillary Traffic Sign Dataset (research)
• URL of dataset: https://www.mapillary.com/dataset/trafficsign
• License of dataset: https://www.mapillary.com/dataset/assets/mapillary-object-dataset-research-use-license-2019.pdf
• Short description of dataset and use case(s): Mapillary Traffic Sign Dataset, the world’s most diverse publicly available dataset of traffic sign annotations on street-level imagery that will help improve traffic safety and navigation everywhere. Covering different regions, weather and light conditions, camera sensors, and viewpoints, it enables developing high-performing traffic sign recognition models in both academic and commercial research.

Folks who would also like to see this dataset in tensorflow/datasets, please thumbs-up so the developers can know which requests to prioritize.

And if you'd like to contribute the dataset (thank you!), see our guide to adding a dataset.

Start with docs/add_dataset.md, then review the Mapillary Traffic Sign Dataset page and its research-use license linked in the issue. The work is complete when the dataset has been contributed to tensorflow/datasets according to that guide, with its stated metadata and licensing requirements addressed.