Thames Valley Parkway Markers

Location of distance markers (every 500m) along the Thames Valley Parkway (TVP). Distances are calculated from the Forks of the Thames.本数据集收录泰晤士河谷公园道（Thames Valley Parkway, TVP）沿线每500米设置一处的距离标识牌位置信息，所有距离均以泰晤士河汇流处（Forks of the Thames）为基准计算得出。