Parking Violations Summary for 2010 - Weeks 1 to 26

The Vision Zero data contained in this layer pertain to parking violations issued by the District of Columbia's Metropolitan Police Department (MPD)and partner agencies with the authority to do so. For example, the District Department of Transportation's (DDOT) traffic control officers who prevent congestion through enforcement and control at intersections throughout the District. Locations of moving violations are identified from a database provided by the District Department of Motor Vehicles (DMV). The data is summarized by ticket counts based on time of day, week of year, year, and category of violation. The summary form was created as a series of aggregated street segment data, in order to view spatial patterns on a weekly basis. This is a temporal crosstab of violation types (defined below) by week and time of day (ranges defined below). Users are able to query by week to get a DC-wide yearly and weekly perspective on over 50 different combinations of violations. Create interesting street segment heat maps which can get quite specific to identify patterns and answer questions. For example, what type of parking violations occurred the most in the time period of this data? These data will give up to 26 distinct street segments of information – one for each week of the half year. Important Notes: Records which could not be associated to a street centerline segment were excluded from these summaries. Records which do not have a time of day associated with the violation were excluded from these summaries.本图层所包含的零愿景（Vision Zero）数据集，涵盖哥伦比亚特区大都会警察局（Metropolitan Police Department, MPD）及具备相应执法权限的合作机构开具的停车违章罚单。例如，特区交通运输局（District Department of Transportation, DDOT）的交通管控警员，通过在特区全境各交叉口开展执法与管控工作以缓解交通拥堵。 行车违章的点位信息源自特区机动车辆管理局（District Department of Motor Vehicles, DMV）提供的数据库。 该数据集基于罚单数量进行汇总，汇总维度涵盖每日时段、年度周次、年份以及违章类别。为支持按周度视角分析空间分布模式，本次汇总采用聚合后的街道路段数据形式。 本数据集为按周度与每日时段（时段范围详见下文）交叉制表的违章类型（定义详见下文）统计表。用户可按周度进行查询，从而从特区全域视角掌握50余种不同违章组合的年度及周度分布情况。 可生成精细化的街道路段热力图，以识别违章模式并解答相关问题，例如：在本次数据覆盖的时段内，哪种停车违章行为最为频发？ 此类数据集最多可提供半年内每周对应的26条独立街道路段信息。 重要说明：无法关联至街道中心线路段的记录，以及未关联至每日时段的违章记录，均已被排除在本次汇总之外。