卡车
强度(物理)
能量强度
模式(计算机接口)
能量(信号处理)
环境科学
包络线(雷达)
柴油
汽车工程
比例(比率)
交通强度
运输工程
计算机科学
工程类
统计
数学
地理
物理
电信
地图学
量子力学
雷达
操作系统
作者
Michael Gucwa,Andreas Schäfer
标识
DOI:10.1016/j.trd.2013.03.008
摘要
This paper analyzes energy intensities of ships, diesel–fuelled railways, trucks, and aircraft, using publicly available data. The analysis suggests that differences in operation, not technology, explain most of the variation in energy intensity within and across modes. Among the operational characteristics, most important is the amount of cargo weight transported per vehicle and therefore the scale of the respective transportation system. It is found that each mode has a characteristic envelope in an average energy intensity versus average cargo weight diagram, and estimates of the elasticities of energy intensity with respect to load size are made.
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