Last week, as a part of improving the quality of road network data in Taiwan in OpenStreetMap and correct data misalignment issues in Taiwan, the Mapbox data team along with the Taiwan OpenStreetMap community has completed aligning major roads in 6 cities in Taiwan.

For this task, the team used updated Mapbox satellite imagery and Strava heat map for aligning the major highway network.

We have presently managed to align and improve more than 4000 kilometers of major highways in Taiwan in just 3 days by working alongside the Taiwan community. The 6 cities where the aligning effort is concentrated are: Taipei, New Taipei, Hsinchu, Taichung, Yilan and Tainan.

New updated Mapbox satellite imagery in Taipei

We have received a great response from the community on this task. They have been extremely helpful in resolving our queries and verifying edge cases and updated data from the ground in the mapping ticket. Taiwan OpenStreetMap community have also started validating our tasks as we have mapped.

While mapping we have come across situations of missing data and recent constructions which may not be reflected in the satellite imagery and are difficult to trace without local knowledge. It will be great to have the community continue validating our work on the ground and also help in adding any missing data in any area to improve the data quality in Taiwan. We also plan to continue aligning minor road network in the cities mentioned above once the validation of the major road alignment is completed.

We thank the community for all the support. We look forward to more interactions with the Asian community. Few of our team members will be present at SoTM Asia this week in Philippines, catch up with @manings, @srividya_c, @Chetan_Gowda, @nikhilprabhakar and me to talk more on this and the latest data team projects at Mapbox!

Thanks,

From Mapbox Data Team.