Method for calculating feasible turn-back time of train under complex road crossing condition

Abstract

The invention discloses a method for calculating the feasible turn-back time of a train under a complex road crossing condition; the method comprises the following steps: S1, determining related dataaccording to a line section where a running train runs and a station yard which is correspondingly arranged in the line section; S2, performing calculation by using a point laying algorithm, and for each possible delta, calculating whether a train line of each turning point can be connected or not under the condition; S3, calculating the time by using a connection algorithm, matching a departure train line for each arrival train line at all turning points, and respectively calculating the time in a single-track turn-back manner and a double-track turn-back manner; S4, calculating the number ofundercarriages, which includes calculating the number of undercarriages of a non-overrun intersection road and calculating the number of undercarriages of an overrun intersection road according to whether overrun occurs or not; and S5, optimizing a turn-back scheme, and determining the optimal turn-back scheme according to the principle that the number of required undercarriages is as small as possible and the allowance of each turn-back point is as small as possible. According to the invention, the mapping efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a return time algorithm. Background technique [0002] The existing algorithm for calculating the reentry time is mainly based on the formula; [0003] (1) Full turnaround time = number of vehicles * interval [0004] (2) Full turnaround time = uplink running time + downlink running time + uplink turnaround time + downlink turnaround time [0005] The above formula can only calculate the turning time of simple intersections, and there is no other published algorithm for calculating the turning time of complex intersections. [0006] In actual operation, there are various forms of lines, including X-type, Y-type, and circular. Depending on the needs of passenger flow, different departure intervals and intersections may be used, and some lines even use three different intersections, so the above formula cannot be used to directly calculate the return time. Contents of the...

AI Technical Summary

Problems solved by technology

[0005] The above formula can only calculate the turning time of simple intersections, and there is no other published algorithm for calculating the turning time of complex intersections

[0006] In actual operation, there are various forms of lines, including X-type, Y-type, and circular. According to the needs of passenger flow, different departure intervals and intersections may be used. Some lines even use three different intersections. The above formula cannot be directly used to calculate the return time.

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