SURVEYING ASSISTANCE PROGRAM, SURVEYING ASSISTANCE DEVICE, SURVEYING ASSISTANCE METHOD, AND SURVEYING ASSISTANCE SYSTEM

The present invention provides a technique with which a cross-sectional view assumed by a worker can be easily prepared. A surveying assistance device (50) reads design information including center point data and constituent point data of a route, in which a cross-section including a center point, the cross-section being orthogonal to the route is set, acquires position information indicating a current position of a surveyed device with a predetermined period, creates a plan view and a cross-sectional view of the route from the design information, and displays the plan view and the cross-sectional view on a terminal screen unit (51), records the acquired position information and survey information calculated from the position information in a terminal storage unit (53) as observation point data on the cross-section, displays an observation point data list in which the observation point data is arranged as data placed in order and an observational cross-section displaying positions of observation points on the cross-sectional view on the terminal screen unit (51), makes the display order of the observation point data in the observation point data list rearrangeable following a command from a terminal operation unit (52), and displays a connection line connecting the observation points on the observational cross-sectional view following the display order.