综合运输体系下的货运方式分担率

发布时间：2018-05-27 00:29

本文选题：货运方式 + 分担率　；参考：《东南大学学报(自然科学版)》2015年06期

【摘要】：为优化货运交通结构并合理配置货运交通资源,研究了综合运输体系下基于运距的货运方式分担率.通过对国内城市间不同货运量与运距的集计数据进行统计分析,确定货运量与运距的函数关系式.随后,构建货运方式分担率-运距模型,并获取货运方式分担率-运距曲线.研究结果表明,各货运方式分担率随运距变化呈现出特定的分布规律.公路货运分担率-运距曲线呈单调递减趋势,在50~500 km运距范围内的分担率超过40%;铁路货运分担率-运距曲线呈先增后减趋势,拐点出现在600~700 km之间;水路货运分担率-运距曲线呈单调递增趋势;航空货运分担率-运距曲线在150~700 km运距范围内呈缓慢递增趋势,700~1 900 km运距范围内快速递增,运距超过1 900 km后趋于平缓.
[Abstract]:In order to optimize the freight transportation structure and allocate the freight transportation resources reasonably, the freight transportation mode sharing rate based on the distance under the integrated transportation system is studied. Based on the statistical analysis of the aggregate data of different freight volume and distance between cities in China, the functional relationship between freight volume and distance is determined. Then, the model of freight mode sharing rate and transportation distance is constructed, and the freight mode sharing rate-transportation distance curve is obtained. The results show that the distribution rate of freight modes varies with the distance. There is a monotone decreasing trend in the curve of the ratio and distance of road freight transport, which is more than 40% within the range of 50 ~ 500 km, and the curve of the ratio and distance of the railway freight increases first and then decreases, and the inflexion point appears between 600 and 700 km. There is a monotone increasing trend in the waterway freight share ratio and distance curve, and a slow increasing trend in the distance range of 150 ~ 700 km and 1 900 km, which tends to be flat after the distance exceeds 1 900 km.
【作者单位】：东南大学城市智能交通江苏省重点实验室;南昌航空大学土木建筑学院;湖南科技大学地理空间信息技术国家地方联合工程实验室;
【基金】：国家自然科学基金重点资助项目(51338003);国家自然科学基金资助项目(51478113) 江苏省高校研究生科研创新计划资助项目(KYLX15_0154)
【分类号】：U116

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