Urban traffic operation evaluation method based on ecological indexes

Abstract

The invention discloses an urban traffic operation evaluation method based on ecological indexes. The method comprises the following steps: acquiring driving parameters of a sample vehicle by utilizing vehicle trajectory data of a floating vehicle; preprocessing the vehicle track data of the floating vehicle; defining a minimum directed road section and ecological cost in the road network; calculating the ecological index of the minimum directed road section in the road network; calculating an ecological index of a directed path in the road network; calculating an ecological index of a directed path set in the road network; and optimizing and adjusting the urban traffic operation scheme according to the calculated ecological indexes of the minimum directed road section, the directed path and the directed path set in the road network to improve the urban traffic. According to the invention, technical reference bases can be provided for urban management departments, urban traffic planning and facility construction, accurate and comprehensive traffic travel cost can be provided for the public, and urban resident travel ecologicalization and sustainable development of urban traffic systems can be promoted.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic systems, in particular to an ecological index-based urban traffic operation evaluation method. Background technique [0002] Facing the rapid expansion of urban transportation network and the sharp increase in demand, the congestion of cars and buses, energy consumption and exhaust pollution are increasing day by day, it is imminent to conduct comprehensive and in-depth comprehensive research on transportation ecology. In order to alleviate urban traffic diseases such as congestion, air pollution, time loss and energy consumption caused by urban traffic travel, we should start from various costs of traffic travel, abandon the analysis method that only considers a single factor of travel delay, and establish a more comprehensive A new method for evaluating traffic operation conditions that is accurate, accurate, and compatible with the ecological environment. [0003] The disadvantages...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the existing urban traffic evaluation system are: 1. Most of them focus on evaluating the basic conflicts between vehicles and roads and the overall traffic system operating efficiency, operating costs and traffic comfort, while the increasingly prominent traffic energy consumption and environmental pollution Insufficient research on issues such as delay and its derived indicators as the main indicators of traffic evaluation, while ignoring ecological indicators such as energy consumption and emissions; 2. Most of the research focuses on the overall travel characteristics of road sections, ignoring the traffic differences of different turning paths , it is especially difficult to characterize the travel cost of multiple paths between origin-destination (OD) in the middle and long distance

In general, the existing methods mainly rely on the vehicle state to estimate the energy consumption and emissions of macroscopic road segments, and less consider the key influence of the vehicle's instantaneous operating conditions.

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