交通运输生命线灾害经济效益损失计算

生命线灾害的经济损失分为财产损失、救灾费用和效益损失；每种经济损失又分为企业经济损失和社会经济损失。文章提出了交通运输生命线灾害社会效益损失的计算方法，给出了灾害造成的运输费用和运输时间增加等１５个项目的计算内容和计算公式；计算中分别考虑了正常运输量、外部转移运输量、内部分流运输量、诱发运输量等损失变化所造成的社会经济效益损失。

CALCULATION OF ECONOMIC BENEFIT LOSSES ON COMMUNICATION AND TRANSPORTLIFELINE DISASTER

The economic losses of lifeline disasters are classified as property loss, disaster--relief cost andbeneficial loss. Each economic loss are divided into enterprise economic loss and social economic loss.A calculation method is developed for beneficial loss. The paper putS forward 15 items and Galculationformulas for social benefit losses of Communications and transport lifeline disasters. They includefreight change, hours change, more crowded situation, more traffic accidentS, more damaged goods, anddifferent packing methods during transportation before and after disaster. The two main losses(freightchange and hours change) are calculated with 4 kind of changes for traffic volumes, i.e. normal volume, the volume transferred to other kind of transport, the volume transferred to other lines in thesame transport, and induced volume loss because of the disaster. They are also calculated for passengerand goods respectively.