Positioning error calculation device, positioning error calculation system and positioning error calculation method

A positioning error calculation method comprising:

• Storing first positioning record information including first positioning result information corresponding to a position of a terminal device, which has been measured by first positioning means, into first positioning record storage means;
• selecting and acquiring said first positioning record information from said first positioning record storage means;
• calculating a density of positioning records at each of predetermined places on the basis of said first positioning record information having been acquired;
• calculating an estimated positioning error value on the basis of said density having been calculated;
• and
• acquiring said estimated positioning error value at each of said places by acquiring said estimated positioning error value corresponding to said density on the basis of said density at the each of said places, having been calculated.

A non-transitory computer-readable recording medium for recording a positioning error calculation program which causes a computer to execute processing, the processing comprising:

• a process of selecting and acquiring first positioning record information conforming to a predetermined condition from among the first positioning record information including first positioning result information which is stored in first positioning record storage means, and which corresponds to a position of a terminal device, having been measured by first positioning means;
• a process of calculating a density of positioning records at each of predetermined places on the basis of said first positioning record information having been acquired;
• a process of calculating an estimated positioning error value on the basis of said density having been calculated;
• and
• a process of acquiring said estimated positioning error value at each of said places by acquiring said estimated positioning error value corresponding to said density on the basis of said density at the each of said places, having been calculated.