Cost Benefit Analysis for Policy Measures against Illegal Parking of Bicycles

本研究分析了各种政策措施对减少东京火车站附近非法停放自行车的影响。我们研究的政策措施有：(1)降低停车费；(2)移除自行车；(3)扩大停车位以减少拥堵。本研究的最终目的是对这三个政策变量进行成本效益分析。在计量经济分析中，我们不仅使用了普通最小二乘法，还使用了Logit和Tobit模型分析。对于2001年的数据，当非法停车猖獗，这三个变量在统计上都是显著的。但当2010年的数据，当违规停车不再猖獗，停车位空置率是唯一的统计显著和政策相关的变量。分析表明，减少自行车违规停放最有效的政策是扩大停车位。

The present study analyzes the effects of various policy measures upon reducing illegal parking of bicycles near train stations in Tokyo. The policy measures we study are: (1)reducing parking fees, (2)removal of bicycles, (3) expanding the parking place to reduce congestion. The final aim of the study is to conduct cost benefit analysis on those three policy variables. In an econometric analysis, we use not only ordinary least squares method but also Logit and Tobit model analysis.For the data of 2001, when illegal parking was rampant, all three variables are statistically significant. But when the data of 2010, when illegal parking is no longer rampant, the vacancy rate of the parking place was the only statistically significant and policy relevant variable. This analysis revealed that the most effective policy for reducing the illegal bicycle parking is to expand parking place.