For scheduling train diagrams by electronic computers, comparatively succint algorithm to treat the rather tedious time calculation by turns problem and that of determining train intervals under the complicated circumstances of the existence of various passenger trains attd mixed unit trains is proposed.

Then this paper introduces the concept of the“buffer time”into the train intervals for researching the transport capacity of rail transit, and modifies the carrying capacity of rail transit. At the same time the concept of“distance”is bring into the capacity, it puts forward the traffic network capacity of rail transit, and analysis the characteristics and influence factors.

although liquidation may not happen when one train passs,if the train intervals are short,liquidation may happen as the result of the fact that pore water pressure can not fully dissipate.

Different calculating methods for the corresponding train tracking intervals are deduced accordingly and verified with MATLAB,and the simulation result is analyzed.

7, 8, 13).Inter-train intervals decreased very rapidly from minutes to tens of seconds over the first 6 h (Fig.

Most discharges occurred in trains of up to 14 EODs with relatively constant intra-train intervals of 100-150 ms (Figs.

This paper presents some fundamental conceptions and mathematical models as well as analysis of the related problems for studying the carrying capaci- ties of double track automatic block districts by the application of graphics. For scheduling train diagrams by electronic computers, comparatively succint algorithm to treat the rather tedious time calculation by turns problem and that of determining train intervals under the complicated circumstances of the existence of various passenger trains attd mixed...

This paper presents some fundamental conceptions and mathematical models as well as analysis of the related problems for studying the carrying capaci- ties of double track automatic block districts by the application of graphics. For scheduling train diagrams by electronic computers, comparatively succint algorithm to treat the rather tedious time calculation by turns problem and that of determining train intervals under the complicated circumstances of the existence of various passenger trains attd mixed unit trains is proposed. The application of computers and graphics to work out train diagrams of maximum extent not only makes the precise determination of carrying capacity a reality,but also provides an important means to study the coefficient of removal. Hence in the present age of electronic computers being well developed, more emphasis should be laid upon the graphics for the calculation of carrying capacity.

During the 20th century, the U. S. A. has spent huge amount of money to build highways, and the existing railway declined gradually. From 1980's on,the importance of railway was realized, so that it is revitalized. Drawing on the experiences of American railways,Chinese railway should select lines and set grades according to topography; Build railway first and then improve related facilities; Accelerating electrification of Beijing-Shanghai Line and BeijingShenyang Line; The train interval should be shortened...

During the 20th century, the U. S. A. has spent huge amount of money to build highways, and the existing railway declined gradually. From 1980's on,the importance of railway was realized, so that it is revitalized. Drawing on the experiences of American railways,Chinese railway should select lines and set grades according to topography; Build railway first and then improve related facilities; Accelerating electrification of Beijing-Shanghai Line and BeijingShenyang Line; The train interval should be shortened to 6-7 minutes in average; the locomotives and roling stocks should be increased in proportion to transportation volume;Run quasi-high speed trains on Shanghai-Nanjing Line; Use existing lines to run suburban passenger trains. By doing all these, Chinese railway can accelerate its development and release the tension on transportation capacity.

he paper proposes the main problems which should be overcomed immediatelyduring constructing the catenary on the existing railway lines, such as the contradictions between the traffic volume and the engineering Period, between the requirement of time interval for constructing work and the train operation management, and between the train interval and the continuity of engineering procedures. By analyzing the specialities of the catenary construction, the scope of catenary effected by the traffic...

he paper proposes the main problems which should be overcomed immediatelyduring constructing the catenary on the existing railway lines, such as the contradictions between the traffic volume and the engineering Period, between the requirement of time interval for constructing work and the train operation management, and between the train interval and the continuity of engineering procedures. By analyzing the specialities of the catenary construction, the scope of catenary effected by the traffic interference, etc, the feasibility of realizing different tariff for different kind of engineering projects to solve these contradictions are explored.