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Economic analysis of reconfiguring the Long Beach breakwater

机译：重新配置长滩防波堤的经济分析

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摘要

This paper analyzes a proposed reconfiguration of the Long Beach Breakwater. The current breakwater limits water circulation inside the San Pedro Bay adjacent to the beach. This, along with runoff from the Los Angeles River, has lead to poor water quality at Long Beach, reducing recreational value. Reconfiguring the breakwater could also increase wave activity, increasing demand for surfing, bodyboarding, and other wave activities. Our preliminary estimates, based on parking capacity, beach carrying capacity and densities at nearby beaches, indicate that with an increase in water quality and some wave activity, the number of visitors to beaches at Long Beach could increase substantially, up to 3 million people per year. This increase in attendance and recreational quality will increase recreational benefits by $27.5 million per year, or $555 million (PV) over a 50-year period. For the city of Long Beach, the increase in spending is $52 million per year. Increased beach tourism will generate $2.5 million per year in taxes and $4.3 million in parking revenues/fines.
机译：本文分析了提议的长滩防波堤的重新配置。当前的防波堤限制了靠近海滩的圣佩德罗湾内的水循环。这与来自洛杉矶河的径流一起，导致长滩的水质较差，降低了娱乐价值。重新配置防波堤还可能增加海浪活动，增加对冲浪，冲浪板和其他海浪活动的需求。根据停车位，海滩的承载能力和附近海滩的密度，我们的初步估计表明，随着水质的提高和海浪活动的增加，长滩海滩的游客人数可能会大幅增加，每人最多可容纳300万人年。出勤率和娱乐质量的提高将使娱乐收益每年增加2750万美元，或者在50年期间增加5.55亿美元（PV）。对于长滩市来说，每年的支出增加为5200万美元。增加的海滩旅游业每年将产生250万美元的税收和430万美元的停车收入/罚款。

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