Several ideas are further discussed, such as planning model, characteristic of traffic network, feasible traffic network scale, locating the accumulating and dispersing node of passenger flow, and planning land usage control.

This thesis analyses natural geographical circumstances, the general situation of economy development and highway development of Shaan-xi province on the basis of plenty of internal and external information and collection on the spot, deeply studies rational scale of highway system of Shaan-xi province, the standard of the road alignment and the technique index of the embankment and the pavement .

Computation model of network scale for urban rail transit based on traffic demand overflow;

Calculation of urban rail transit network scale based on passenger distributing centers

A model of urban rail transit network scale was discussed based on qualitative analysis and quantitative analysis.

Rational Scale & Layout Methods for Urban Rail Transit Network;

Based on the comparison and analysis on theoretical assumptions of the rational scale of community population from domestic and overseas, this paper discusses the topic from different perspectives, such as administrative system, alloca- tion of engineering technology, operational benefit of public facilities, residents’ social mental endurance capacity.

In this paper, the rational scale of human resources for the railway transportation industry in China is analyzed quantitatively.