Research Article
Delay-Sensitive Task Assignment for Spatial Crowdsourcing
Table 4
The length and range of geohash codes.
| | Geohash length | Lat bits | Lng bits | max_widthDis (km) | max_highDis (km) |
| | 1 | 2 | 3 | 5003.771699 | 5003.771699 | | 2 | 5 | 5 | 1196.915136 | 625.4714624 | | 3 | 7 | 8 | 145.8896183 | 156.3678656 | | 4 | 10 | 10 | 36.25241673 | 19.5459832 | | 5 | 12 | 13 | 4.53014941 | 4.8864958 | | 6 | 15 | 15 | 1.13249345 | 0.61081197 | | 7 | 17 | 18 | 0.14155894 | 0.15270299 | | 8 | 20 | 20 | 0.03538973 | 0.01908787 | | 9 | 22 | 23 | 0.00442372 | 0.00477197 | | 10 | 25 | 25 | 0.00110593 | 0.0005965 | | 11 | 27 | 28 | 0.00013824 | 0.00014912 | | 12 | 30 | 30 | 0.00003456 | 0.00001864 |
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