Park and Ride Survey Locations

This layer consists of points representing park and ride origin survey locations. Only train stations and park and rides that have publicly accessible parking and have been surveyed by DVRPC. Each station’s data is based on fieldwork completed in one day, typically in fall or spring between the hours of 9 AM and 4 PM. A publicly accessible web mapping application is available for use. To ensure privacy of the surveyed vehicles, individual points are aggregated to a standard geography in order to visualize trends of how people are using public transportation as part of their commute. In this case, the standard geography is 1/2 square mile hexagons that are large enough to anonymize the points within them, but also small enough to effectively display the trends in the data: DVRPC Park & Ride Passenger Origins本图层由代表停车换乘（park and ride）起点调查点位的点要素组成，仅收录由DVRPC完成调查、且配套公共可使用停车场的火车站与停车换乘点位。各站点的数据集基于单日野外作业采集，调查时段通常为秋季或春季的上午9时至下午4时。平台配套提供可公开访问的网络地图应用程序。为保障受访车辆的隐私安全，需将单个点位聚合至标准地理单元，以此可视化呈现民众将公共交通作为通勤出行方式的使用趋势。本次采用的标准地理单元为0.5平方英里的六边形网格，该尺寸既能充分掩盖其内的点位信息以实现匿名化保护，又足够精细以有效展示数据中的趋势：DVRPC Park & Ride Passenger Origins