Pedestrian Counting System - Sensor Locations

This dataset contains status, location and directional information for each pedestrian sensor device installed throughout the city. The sensor_id column can be used to merge the data with related datasets. Since the inauguration of the Pedestrian Counting System in 2009, some sensor devices have been removed or relocated. This may be for various reasons such as construction works. Others may be inactive due to a temporary issue. This is detailed in the notes column. Any changes to sensor locations are important to consider when analysing and interpreting historical pedestrian counting data.Sensors are typically installed under an awning or on a street pole to form a counting zone on the footpath below. They record bi-directional pedestrian movements through the zone, 24 hours, every day. Locations are selected based on three criteria – retail and event activity, regular pedestrian use and the egress and entry flow to these areas. The system records movements, not images, so no individual information is collected. New sensor devices have been recently installed, with more to come in the near future as part of the city’s commitment to expanding the system. Status field:This field indicates if the sensor is expected to be active and is manually maintained as needed. A pedestrian sensor with an active value ('A') may be unavailable in some situations. A representation of pedestrian volume which compares each location on any given day and time can be found in our Online Visualisation.Related datasets: Pedestrian Counting System – 2009 to Present (counts per hour)Pedestrian Counting System – Past Hour (counts per minute)

本数据集包含全市范围内安装的每台行人传感器设备的状态、位置与方向信息。可通过`sensor_id`列将本数据集与其他相关数据集进行关联合并。
自2009年行人计数系统（Pedestrian Counting System）启用以来，部分传感器设备已被移除或搬迁，此类变动的原因可能包括施工工程等多种因素；另有部分设备可能因临时故障处于非活跃状态，相关细节均记录于`notes`列中。在分析和解读历史行人计数数据时，需充分考虑传感器位置变动带来的影响。
传感器通常安装于遮阳篷下方或街道灯杆上，以在下方人行道划定计数区域。设备每日24小时不间断记录该区域内双向的行人通行流量。传感器安装点位的选取需符合三项标准：零售与活动客流情况、常规行人使用频率，以及该区域的进出人流走向。
本系统仅记录行人通行数据，不采集任何图像信息，因此不会收集行人个体身份相关数据。近期已有新的传感器设备投入安装，作为本市拓展行人计数系统的承诺举措之一，未来还将部署更多设备。
`Status`字段：本字段用于标识传感器是否处于预期活跃状态，可根据实际需求进行手动维护调整。当传感器的状态值为`'A'`（活跃）时，仍可能在部分场景下无法正常工作。
可通过本机构的在线可视化平台，查看任意日期与时段下各点位的行人通行量对比情况。
相关数据集：
1. 行人计数系统（Pedestrian Counting System）——2009年至今（每小时计数数据）
2. 行人计数系统（Pedestrian Counting System）——近一小时（每分钟计数数据）