An Urban Road Network Mode Selection Method Based on Comprehensive Travel Costs
A technology for urban road network and mode selection, applied in data processing applications, traffic control systems for road vehicles, instruments, etc., can solve the problem of increasing urban traffic congestion, increasing the cost of repeated urban construction, and the difficulty of comprehensively analyzing the rationality of urban road network modes And other issues
Active Publication Date: 2020-11-06
HEFEI UNIV OF TECH
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Problems solved by technology
On the one hand, super-wide roads are constantly being built in the process of urban planning. On the other hand, the blind widening of roads has caused vehicle convergence and traffic congestion. Urban traffic congestion continues to intensify, which increases the cost of repeated urban construction, and the travel expenses of urban residents remain high
[0003] For a long time, in the planning, design and construction of urban roads, whether it is a road network design scheme or a traffic system control scheme, most of them are aimed at improving road capacity and road network accessibility, reducing traffic accident rates, improving travel efficiency, and reducing traffic. Congestion, etc. are designed for a single goal, and it is difficult to comprehensively analyze the rationality of the urban road network model
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[0074] see figure 1 , the urban road network mode selection method based on comprehensive travel expenses in the present embodiment is carried out according to the following steps:
[0075] Step 1. According to the road width, density, and road control method, set the four optional grid road network modes as follows:
[0076] Figure 2a Mode 1 shown: two-way 8-lane road network mode, Figure 2b Mode 2 shown: two-way 4-lane road network mode,
[0077] Figure 2c Mode 3 shown: Two-way 2-lane road network mode, Figure 2d Mode 4 shown: one-way 2-lane road network mode.
[0078] The indicators of the four grid-type road network models are shown in Table 1.
[0079] Step 2. Comprehensively consider the three indicators of vehicle fuel consumption, travel time and travel time unreliability, respectively give the weight of each indicator, and construct the urban road network comprehensive travel cost objective function.
[0080] Step 3, delineate the urban road network plannin...
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The invention discloses an urban road network mode selection method based on comprehensive travel costs. First, four optional grid-type road network modes are set, namely a two-way 8-lane road network mode, a two-way 4-lane road network mode, a two-way 2-lane road network model and one-way 2-lane road network model; considering the comprehensive impact of multiple factors such as fuel consumption, travel time and travel time unreliability, a comprehensive travel cost objective function of the urban road network is constructed; based on the delineated urban road network The traffic flow in the planned area is the independent variable. The comprehensive travel cost required for the traffic flow to cross the planned area under four different grid road network modes is calculated. The road network mode with the smallest comprehensive travel cost is selected as the planned area. Recommended road network mode. The method of the invention considers the comprehensive impact of multiple factors such as fuel consumption, travel time and travel time unreliability, and can further reduce urban construction and residents' travel costs.
Description
technical field [0001] The invention belongs to the field of urban road network planning, in particular to a method for selecting an urban road network mode based on comprehensive travel costs. Background technique [0002] With the continuous advancement of urbanization and motorization in our country, the number of motor vehicles has continued to increase, and a series of social problems such as traffic congestion, increased energy consumption, and environmental degradation have become long-term issues that plague urban planning and construction. On the one hand, super-wide roads are constantly being built in the process of urban planning. On the other hand, the blind widening of roads has caused vehicle convergence and traffic congestion. As a result, urban traffic congestion continues to intensify, which increases the cost of repeated urban construction, and the travel expenses of urban residents remain high. [0003] For a long time, in the planning, design and constru...
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IPC IPC(8): G08G1/01G06Q10/04G06Q10/06G06Q50/30
CPCG06Q10/047G06Q10/06393G08G1/0137G06Q50/40
Inventor 石琴杨昊隆陈一锴
Owner HEFEI UNIV OF TECH