Provided is software provided with electronic maps of unidirectional-bidirectional road sections and associated data tables, capable of achieving maintenance and query of road section information in map and data table operating modes, adopting a Nan'an district traffic equilibrium problem Beckmann generalization formula to calculate an equilibrium state and reflecting and pre-estimating the problems existing in a Nan'an district traffic network according to a calculation result. In the actual running and evaluation process of the software, actual measurement is conducted on a road section with large traffic flow, selected from a selected Nan'an district area, to obtain the number of passing vehicles in a single lane per hour, then the number is multiplied by lane number to obtain road section traffic capacity information, the actually-measured information is input into the software to perform calculation and conduct pre-estimation on traffic condition, a pre-estimation result highly coincides with an actual investigation result and the result obtained through pre-estimation after the associated road section state information is purely set through the software, and the software is traffic network high-simulation system software.