Method for predicting running speed of vehicle on uphill road section in plateau area
A vehicle operation and area technology, applied in forecasting, complex mathematical operations, data processing applications, etc., can solve problems such as inaccurate and inapplicable vehicle operating speed prediction results
Pending Publication Date: 2021-09-07
SOUTHEAST UNIV
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The original data source of the main research results of this prediction model is the high-speed measured data with an average altitude of approximately 1,500 meters, while the average altitude of plateau areas is above 4,000 meters. Therefore, the operating speed prediction model adopted in the specification is not suitable for plateau areas. , there is an inaccurate prediction result of the running speed of the vehicle on the uphill section of the plateau area
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[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0045] In one embodiment, such as figure 1As shown, a method for predicting the running speed of vehicles on the uphill section of the plateau area is provided, including the following steps:
[0046] Step S220, obtaining the design speed of the uphill road section in the plateau area.
[0047] Step S240, inputting the design speed into the pre-built vehicle running speed analysis model of the uphill road section in the plateau area, predicting the actual running speed of the vehicle on the uphill road section in the plateau area, and obtaining the prediction result of th...
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The invention relates to a method for predicting the running speed of a vehicle on an uphill road in a plateau region. The method comprises the following steps: acquiring a designed speed of an uphill road section of a plateau region; inputting the designed speed into a pre-constructed vehicle running speed analysis model of the uphill road section of the plateau region, predicting the actual running speed of the vehicle on the uphill road section of the plateau region, and obtaining a prediction result of the actual running speed of the vehicle on the uphill road section of the plateau region; the vehicle running speed analysis model for the uphill road section in the plateau area is characterized in that nonlinear regression fitting is carried out on the speeds of different vehicle types in the plateau area under different slopes according to the sensitivity of different vehicle types to different longitudinal slopes, the expected speeds of different vehicle types in the plateau area and an ideal speed model of the uphill road section; obtaining the vehicle running speed analysis model of the uphill road section of the plateau area, and the accuracy of running speed prediction of the vehicles on the uphill road section of the plateau area can be improved by adopting the vehicle running speed analysis model for prediction.
Description
technical field [0001] The present application relates to the technical field of road traffic, in particular to a method for predicting the running speed of vehicles on uphill road sections in plateau areas. Background technique [0002] Due to the special natural and geographical conditions and historical development factors in the plateau area, road traffic occupies an irreplaceable position in the plateau area's transportation system. However, from the perspective of road safety, the road safety situation in the plateau area is relatively serious compared with other areas. , the number of accidents per kilometer is much higher than that in plain areas and hilly areas. As the demand for road traffic continues to grow, how to travel more safely and efficiently has become a key issue for road designers to solve. [0003] The main technical indicators adopted in the current norms and design standards consider vehicle driving safety, but the design speed is a fixed value, whi...
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IPC IPC(8): G06Q10/04G06F17/18
CPCG06Q10/04G06F17/18
Inventor 陈飞李存孝徐文胜薄雾张平
Owner SOUTHEAST UNIV