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A Multi-mode Travel O-D Demand Estimation Method Based on Multi-source Data Checking

A travel demand, multi-source data technology, applied in data processing applications, calculations, instruments, etc., can solve problems such as difficulty in considering road network traffic characteristics, single source of verification data, and inability to meet accuracy requirements, so as to improve accuracy and practicality performance, ensure computing efficiency, and solve the effect of consistency

Active Publication Date: 2021-09-28
北京城建交通设计研究院有限公司
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Problems solved by technology

However, the existing O-D demand estimation methods for urban road networks are basically based on a single mode of road network, and rarely calculate the demand for different modes between small areas. These methods are difficult to consider the traffic characteristics of different travel modes in the road network. It also cannot analyze comprehensive travel behaviors such as traveler's transportation choice and route choice.
At the same time, the existing method uses a single source of calibration data, and usually only uses the traffic detection flow of the road section to check the O-D estimated value, which cannot meet the accuracy requirements of traffic management for O-D demand estimation

Method used

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  • A Multi-mode Travel O-D Demand Estimation Method Based on Multi-source Data Checking
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  • A Multi-mode Travel O-D Demand Estimation Method Based on Multi-source Data Checking

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Embodiment Construction

[0072] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention with this.

[0073] The present invention is realized through the following technical solutions:

[0074] First, express the urban multi-modal transportation network as G(M,N,A), where M is the set of travel modes in the road network, N is the set of nodes, and A is the set of road sections in the road network. Each travel mode has a corresponding network structure, which is called a subnet, and G m Represents the m (m ∈ M) travel mode subnetwork in the urban transportation network. An urban multimodal transport network inc...

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Abstract

The present application discloses a multi-mode travel O-D demand estimation method based on multi-source data verification, including: S1. Select the basic elements in the traffic network, and establish a city multi-mode traffic network model according to the travel demand between the basic elements; S2. Preprocess the multi-source historical traffic data used to check O-D demand estimates, and obtain the required basic data through statistical calculations; use the model of step S1 and the calculation results of step S2 to perform multi-mode O-D D demand is estimated to obtain the new total O‑D demand. This method is based on multiple data sources for statistics, breaks the limitations of the previous single method of O-D demand estimation, comprehensively considers the traffic characteristics of various travel modes in the road network, and reflects the mutual feedback between O-D demand and road flow The mechanism effectively solves the consistency problem between the O-D estimated value and the actual observed value, and the obtained urban multi-mode O-D demand allocation results meet the user balance criterion.

Description

technical field [0001] The invention relates to the field of traffic travel, in particular to a multi-mode travel O-D demand estimation method based on multi-source data checking. Background technique [0002] O-D (Origin-Destination) demand describes the travel demand of travel units in different traffic areas in the transportation system, and can reflect the distribution of traffic participants such as people and vehicles in the road network within a specific time. O-D demand is an important basic data for traffic planning and management. How to scientifically and accurately predict or estimate the O-D demand of the traffic system has always been one of the hot issues in the transportation field. [0003] The travel of urban residents in my country is a typical multi-modal travel mode. The multi-modal O-D demand describes the O-D demand distribution of different travel modes in the city, and is an important data support for the formulation of comprehensive transportation p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/30G06Q10/04
CPCG06Q10/04G06Q50/30
Inventor 四兵锋杨小宝高自友
Owner 北京城建交通设计研究院有限公司
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