Calculation method and system of road emergency evacuation capability index system

A technology of emergency evacuation and capability index, which is applied in the traffic control system of road vehicles, traffic control system, traffic flow detection, etc. requirements, etc.

Inactive Publication Date: 2010-05-12
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0009] Judging from the current research status, the daily traffic status evaluation indicators of micro roads are quite mature, and have begun to turn to the research of medium and macro regions. After an emergency occurs, the first consideration is evacuation and rescue work, road traffic safety, Unimpededness is the basic guarantee to ensure the sm...

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  • Calculation method and system of road emergency evacuation capability index system
  • Calculation method and system of road emergency evacuation capability index system
  • Calculation method and system of road emergency evacuation capability index system

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Example of Calculation Method for Road Emergency Evacuation Capacity Index System

[0032] refer to figure 1 , figure 1 It is a flow chart of steps according to the calculation method embodiment of the road emergency evacuation capacity index system of the present invention, including the following steps:

[0033]Step 110: Acquiring the actual speed of the road, the actual flow of the road, and the time occupancy rate through microwave detector detection;

[0034] Step 120: Obtain the smoothness reliability, travel time reliability, and load margin of the road according to the actual traffic flow of the road and the time occupancy rate.

[0035] In this step, the load margin is: the ratio of the remaining traffic flow on...

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Abstract

The invention discloses a calculation method and system of a road emergency evacuation capability index system. The method comprises the following steps of: detecting and acquiring the actual speed of a road, the actual flow of the road and the time occupancy ratio by a microwave detector; and acquiring the unblocked reliability, the travel time reliability and the load margin of the road according to the actual flow of the road and the time occupancy ratio. With the steps, the emergency evacuation capability of the road can be evaluated by adopting the speed, the unblocked reliability, the travel time reliability, the load margin and other parameters. By the invention, traffic management personnel know the utilization rate of road resources in the space and accurately grasp the traffic volume held by the road; and the calculation method has important guidance significance on the rescue, the conduct and the dredge of emergencies.

Description

technical field [0001] The invention relates to the technical field of traffic supervision, in particular to a calculation method and system for a road emergency evacuation capacity index system. Background technique [0002] In the field of transportation, some cities in the world use different indicators to evaluate the overall quality of road traffic operation from different perspectives. [0003] The "2002 Shanghai Urban Comprehensive Traffic Development Report" uses the road traffic index to reflect the operation quality and service level of the urban road system. The road traffic index is calculated comprehensively based on indicators such as motor vehicle speed and road saturation. The larger the index, the better the quality of traffic operation, the higher the utilization rate of road resources, and the better the traffic safety. Theoretically, when the index reaches 1000 points, the traffic comprehensive service is in the best condition. [0004] For the four st...

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Application Information

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IPC IPC(8): G08G1/00G08G1/01
Inventor 贾利民秦勇江伟董宏辉高军伟邢宗义裴贺蕊李晨曦张新媛
Owner BEIJING JIAOTONG UNIV
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