Crowdmapping is a subtype of crowdsourcing [1] [2] by which aggregation of crowd-generated inputs such as captured communications and social media feeds are combined with geographic data to create a digital map that is as up-to-date as possible [3] on events such as wars, humanitarian crises, crime, elections, or natural disasters. [4] [5] Such maps are typically created collaboratively by people coming together over the Internet. [3] [6]
The information can typically be sent to the map initiator or initiators by SMS or by filling out a form online and are then gathered on a map online automatically or by a dedicated group. [7] In 2010, Ushahidi released "Crowdmap" − a free and open-source platform by which anyone can start crowdmapping projects. [8] [9] [10] [11] [12]
Crowdmapping can be used to track fires, floods, pollution, [6] crime, political violence, the spread of disease and bring a level of transparency to fast-moving events that are difficult for traditional media to adequately cover, or problem areas [6] and longer-term trends and that may be difficult to identify through the reporting of individual events. [5]
During disasters the timeliness of relevant maps is critical as the needs and locations of victims may change rapidly. [3]
The use of crowdmapping by authorities can improve situational awareness during an incident and be used to support incident response. [6]
Crowdmaps are an efficient way to visually demonstrate the geographical spread of a phenomenon. [7]
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