OpenStreetMap Haiti Statistics

Simone — Fri, 29 Jan 2010 22:14:44 +0000

For a poster I’m working on for the Geomatics for Crisis Management conference, I did run some simple stats on the Haiti Planet extracts. After the recent Earthquake, and after the donation of free/libre aerial imagery there has been an increase in user contributions.

These are the total number of users in the Haiti planet extract as of today (the 29th), and dating back to the 14th. For comparison purpose I’ve added the data for 30th dec 2009. It can clearly be seen that the biggest spike was on 16th, reason being on the 15th the first high quality images were made available for retracing. Then, same thing, same reason, on the 22nd.

first column: date of the extract
second: unique users contributing to the Haiti map
third: Megabytes of the uncompressed extract file (useful for gathering a rough idea of “detail”)

Date	# users	Size (MB)
2009-12-30	38	44
2010-01-14	71	49
2010-01-15	96	51
2010-01-16	183	60
2010-01-17	245	77
2010-01-18	286	93
2010-01-19	300	106
2010-01-20	327	117
2010-01-21	365	126
2010-01-22	494	188
2010-01-23	515	197
2010-01-24	573	211
2010-01-25	585	219
2010-01-26	642	229
2010-01-27	649	234
2010-01-28	655	238
2010-01-29	663	239

Simone Cortesi » crisis management

OpenStreetMap Haiti Statistics