Citing Close

If you use Close in published work, please cite it, and record the data version so your analysis can be reproduced.

Recommended citation

Close.City. Close: travel times from every US census block to nearby points of interest. Henry Spatial Analysis. https://close.city (accessed YYYY-MM-DD).

BibTeX:

@misc{close_city,
  title        = {Close: travel times from every US census block to nearby
                  points of interest},
  author       = {{Close.City}},
  howpublished = {\url{https://close.city}},
  note         = {Henry Spatial Analysis. Accessed YYYY-MM-DD}
}

Pin the version

Close is rebuilt as its underlying sources change, so record the vintage you used. GET /v1/meta/vintage returns the live version of each component (road_network, transit_network, pois, blocks, parks), and GET /v1/last-updated gives the newest publication time. Both are free.

Report these versions in your methods, alongside the access date, so a reader can tell exactly which data produced your results. For how the travel times are computed and what they cover, see The data.