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Vessel traffic flow-based inland waterway trafficability computing method

A calculation method and traffic flow technology, applied in the direction of calculation, special data processing applications, instruments, etc., can solve the problem of complex passage capacity conversion in waterway design

Inactive Publication Date: 2013-06-05
HOHAI UNIV
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Problems solved by technology

However, this model needs to consider the ship type composition, and the calculation result is the basic passing capacity of the channel every day, and the conversion between the annual design passing capacity of the channel is complicated

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  • Vessel traffic flow-based inland waterway trafficability computing method
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  • Vessel traffic flow-based inland waterway trafficability computing method

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0027] Such as figure 1 As shown, the method flow of the present invention is as follows: use the traffic flow theory and the concept of weighted average ship type to obtain the calculation formula of the basic hourly passing capacity of the waterway, and use the principle of hourly coefficient for road traffic engineering design to convert the hourly passing capacity into the annual passing capacity.

[0028] (1) Calculation of designed hourly passing capacity of inland waterway

[0029] The basic passing capacity refers to the maximum number of ships passing through the channel section in a unit time under ideal conditions of the channel and traffic, and the ships on the channel travel continuously with the smallest distance between ships. Of course, this kind of situation does not exist in reality, it is just an ideal situation abstracted for t...

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Abstract

The invention discloses a vessel traffic flow-based inland waterway trafficability computing method, belonging to the technical field of waterway trafficability computation. The vessel traffic flow-based inland waterway trafficability computing method comprises the steps of: firstly obtaining waterway basic hourly trafficability through a concept of weighting to average vessel forms; calculating annular average daily trafficability of the waterway by using a waterway basic hourly trafficability computing model and setting an hourly trafficability coefficient; and finally obtaining waterway design annular trafficability through the annular average daily trafficability. According to the invention, the concept of weighting to average vessel forms is introduced, so that a waterway trafficability computing method can be simplified and the traditional minute and complicated formulae and large number of selected experience parameters are selected, the characteristics of traffic flows can be reflected and trafficability of the waterway can be objectively reflected, and the objectiveness of a computing result for the trafficability of the waterway is improved.

Description

technical field [0001] The invention relates to a method for calculating the passing capacity of an inland waterway for ship traffic flow, and belongs to the technical field of calculating the passing capacity of a waterway. Background technique [0002] With the rapid development of our country's economy, the volume of inland waterway transportation continues to increase, which makes the calculation of waterway passing capacity more and more important in the planning, design and dispatch of inland waterway transportation. Water transportation experts at home and abroad have proposed various calculation formulas for the passage capacity of waterways, including the German formula, the Yangtze River formula, the Wang Hongda formula, and the South Jiangsu Canal formula. These formulas use a large number of correction coefficients to reflect the influence of various influencing factors on the passage capacity of the channel, in order to obtain a result closer to the actual situa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 张玮陈恺李瀛刘怀汉雷国平
Owner HOHAI UNIV