Road toughness measuring method considering performance of long-term and short-term road sections
The invention discloses a road toughness measuring method considering long-term and short-term road section performance, which realizes road toughness evaluation based on data driving by considering road long-term and short-term performance at the same time, and comprises the following steps: firstl...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a road toughness measuring method considering long-term and short-term road section performance, which realizes road toughness evaluation based on data driving by considering road long-term and short-term performance at the same time, and comprises the following steps: firstly, collecting travel speed data of each road section in a road network; secondly, in order to uniformly measure the volatility of different grades of roads, carrying out normalization processing on road network speed data, and determining a region with relatively large fluctuation as a final toughness measurement region by calculating a road section speed variance; calculating the free flow speed of each road section based on historical data; and finally calculating the road section toughness considering the long-term and short-term performance and carrying out sensitivity analysis.
本发明公开了一种考虑长短期路段性能的道路韧性衡量方法,基于数据驱动同时考虑道路长期和短期性能实现道路韧性评估,首先收集路网中各个路段的行程速度数据;其次为了统一度量不同等级道路的波动性,对路网速度数据进行归一化处理,并通过计算路段速度方差确定波动较大的区域作为最终的韧 |
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