Test with starting point at Somerton using default (linear) matching algorithm and cache size 48

Cache is built using a square with sides 20 km. User's path has steps of (2000, 2000) metres, with a total of 11 retrievals. Amount of look-ahead (both E and N) is 5km. Cache size is 48. (Size is set as a fixed value, derived from original size of 92).

Point furthest from the centre of cache (35500000, 13500000) is 3396450, 1186420; distance away is: 22.4971 kilometres.

Results for Somerton (OS 350,130) using default (linear) algorithm and 5 look-ahead
Threshold Total benchmark retrievals Retrievals lost
99% 1 0
98% 15 1
96% 142 9
93% 446 132

Default matching algorithm used was: (version pjb Jan 6b 2003) .

Commentary on this starting point: the cache is centred on non-prime tourist area, but there are prime areas nearby (10 to 30 km).