Twenty-Seven Pink Potential Smart City Nodes in Amsterdam

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PostNL has an incredible network of letterboxes on the street. Last September, we investigated the Smart City opportunities for this network by placing sensors measuring temperature, noise and humidity on the letterboxes.

Central question: To what extend can the letterbox be used for smart city solutions as measuring heat stress, noise disturbance and measurements of local weather conditions?

To get an impression of the coverage the letterbox-network has, try the following experiment. To celebrate the 20th anniversary of Amsterdam Gay pride and the Euro pride event, we have turned twenty-seven of our orange letterboxes into Pride pink letterboxes and gave them a social value by doing so.

As a suggestion for the weekend, I would like to invite you to share your ideas on using letterboxes as Smart City nodes:

Use the locations of the pink letterboxes as a tour guide through the city center of Amsterdam. While walking, notice the short distance between the boxes and please think about what those letterboxes could be measuring, for example on a crowded day as the canal parade day traditionally is. Please share your ideas on the Amsterdam smart city community website!

Locations Pink Letterboxes
1. – 4. Stationsplein
5. Beursplein 2
6. Rokin 134
7. – 8. Muntplein 2
9. Rembrandtplein 16
10. Leidseplein 29
11. Nieuwmarkt 4
12. – 13. Singel 250
14. Korte Prinsengracht 109
15. Prinsengracht 241
16. Westermarkt 74
17. Prinsengracht 339
18. Elandsgracht 1
19. Looiersgracht 2
20. – 21. Prinsengracht 438
22. Kerkstraat 321
23. Fredriksplein 2
24. Kerstraat 461
25. Nieuwe Keizersgracht 2
26. Prins Hendrikkade 193A
27. Kattenburgerstraat 6