Calculation method and system of road emergency evacuation capability index system

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...

AI Technical Summary

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 smooth progress of emergency work. Commonly used road service level evaluation indicators and systems cannot well meet the requirements of road users and traffic managers in emergencies, and lack a set of effective evaluation road emergency evacuation capabilities The indicator system provides guidance for road users and decision support for traffic managers.

Images