Low carbon discharge constraint influence considered traffic mode and path selection method

A traffic mode and route selection technology, which is applied in the traffic control system of road vehicles, traffic control system, road network navigator, etc.

Inactive Publication Date: 2013-06-12
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

[0004] Purpose of the invention: In view of the lack of consideration of the environmental impact of traffic carbon emissions in traditional planning techniques and deficiencies, the purpose of the invention is to provide a transportation mode and route selection method that considers the impact of low-carbon emission constrain...

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  • Low carbon discharge constraint influence considered traffic mode and path selection method
  • Low carbon discharge constraint influence considered traffic mode and path selection method
  • Low carbon discharge constraint influence considered traffic mode and path selection method

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Embodiment

[0074] The use of the model is simple and fast, and the examples are used as follows figure 1 The simple traffic network with only one starting and ending point shows that the quantitative analysis of the model can provide traffic planners with a reasonable ratio of bus and private car trips that meet the low-carbon emission constraints. Figure 4 It is a flowchart of the present invention.

[0075] figure 1 There are a starting and ending point rs and two paths; path 1, path 2, since there are only two paths, the number of travelers on the path is the number of travelers on the road section. The total number of traffic trips between the starting and ending points is q rs =1000. Private car or bus The travel time function t of private car and bus in section a a1 (x a1 ) And t a2 (x a2 ) Are:

[0076] t a 1 ( x a 1 ) = 10 X [ 1 + 0.15 X ( x a 1 2 60 ) 4 ] , t a 2 ( x a 2 ) = ...

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Abstract

The invention discloses a low carbon discharge constraint influence considered traffic mode and path selection method. A low carbon discharge constraint condition is added in a traditional traffic mode and traffic distribution combination model and model solving is carried out through utilizing a genetic algorithm based on real number coding in order to obtain bus and private car trip demands satisfying low carbon constraint conditions, and the traffics of all roads in the road net. The model analysis result is compared with a traditional low carbon discharge constraint unconsidered model analysis result to analyze an improved bus trip mode sharing rate required by the reaching of low carbon and emission reduction purposes and an adjusted road traffic required by the reaching of a CO environment standard, establish the low carbon discharge constraint influence considered traffic mode and path selection method suitable for Chinese traffic environment protection, so a disadvantage that a present traffic program technology does not considers the influences of the traffic carbon discharge to the environment is overcome, thereby the traffic low carbon sustainable development is promoted.

Description

Technical field [0001] The invention belongs to the technical field of urban traffic environmental protection, and uses the traffic network flow theory to propose a method of transportation mode and route selection considering the influence of low-carbon emission constraints. Background technique [0002] With the rapid advancement of urbanization, automobiles fueled by petroleum products bring convenience and speed to people, but also bring unavoidable negative effects. Traffic congestion, energy consumption, environmental pollution and greenhouse gas emissions have become problems that plague many cities. The Chinese government proposed at the Copenhagen International Climate Conference in 2009 that by 2020, carbon dioxide emissions per unit of GDP will be reduced by 40% to 45% compared to 2050. This goal makes the transportation industry, which has rapidly increased carbon emissions, faces severe challenges. [0003] Traditional urban traffic planning and management has the goa...

Claims

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Application Information

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IPC IPC(8): G01C21/34G08G1/00
Inventor 张鑫刘攀王炜李志斌
Owner SOUTHEAST UNIV
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