Flow sensor-based urban road occupancy calculating method

A technology of road occupancy and flow sensors, which is applied in the traffic control system of road vehicles, traffic flow detection, instruments, etc., can solve the problem of difficult to obtain sensing data, and achieve the effect of simple data sources

Inactive Publication Date: 2016-08-24
HANGZHOU YUANTIAO TECH CO LTD
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Problems solved by technology

[0009] In order to overcome the situation that it is difficult to obtain the corresponding sensor data in the existing calculation method of road occupancy rate, the present invention proposes a calculation method of urban road occupancy rate based on flow sensor

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  • Flow sensor-based urban road occupancy calculating method
  • Flow sensor-based urban road occupancy calculating method
  • Flow sensor-based urban road occupancy calculating method

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Embodiment Construction

[0035] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0036] (1) Collect traffic flow data:

[0037] Take Beishan Road - Baochu Road - Shuguang Road, Jianguo North Road - Fengqi Road - Stadium Road, Wenyi Road - Gucui Road - Xueyuan Road, Qiutao Road - Jiefang East Road - Qingjiang Road, Wenyi West Road in Hangzhou City -Five road sections including Fengtan Road-Gudun Road are used as data collection areas, and the above five road sections are recorded as Road Section 1, Road Section 2, Road Section 3, Road Section 4, and Road Section 5, and 07:30-07:35 is used as the data collection time part. The flow detector is a microwave detector, which collects the traffic flow as the source data within 5 minutes.

[0038] (2) Number of standardized vehicles:

[0039] In this embodiment, the vehicle length of the car is used as the standard length. For the other three common ...

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Abstract

The invention discloses a flow sensor-based urban road occupancy calculating method and belongs to the field of intelligent traffic research. The method comprises the following steps: (1) vehicle flow quantity data is collected; (2) a vehicle quantity is standardized based on vehicle models; (3) a vehicle traveling length is calculated based on product of a road speed limit and an observation time length, vehicle safety headway is calculated; an effective vehicle traveling length is calculated; according to the effective vehicle traveling length, the vehicle safety headway and a standard vehicle length, a theoretical maximum vehicle flow quantity is calculated; (4) according to the calculated theoretical maximum vehicle flow quantity and a quantity of standardized vehicles that actually pass, urban road occupancy can be obtained in an observation time period via formula calculation based on an urban road occupancy calculating method. Via use of the flow sensor-based urban road occupancy calculating method, the urban road occupancy can be accurately and automatically calculated.

Description

technical field [0001] The invention relates to a calculation method of urban road occupancy rate based on a flow sensor, which belongs to the research category of intelligent traffic systems. Background technique [0002] The road occupancy rate indicates the ratio of the amount of roads (sections) used by traffic participants to the total amount within a specific period of time. The road occupancy rate reflects the busy situation of road use, which is conducive to intuitively displaying the urban road use situation to travelers, traffic management departments and urban planning departments, and is an important part of the intelligent transportation system. [0003] Commonly used road occupancy calculation methods are divided into time and space. In the time-based method, the ratio of the cumulative value of vehicle passing time to the observation time is used to calculate the road occupancy rate. In this type of method, it is necessary to accumulate the time of each vehi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/065G08G1/01
Inventor 夏莹杰单振宇吴佳雯
Owner HANGZHOU YUANTIAO TECH CO LTD
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