reach usable green building block neighbourhood

Low with range zone of use green both at building block level (smaller than 0.5 ha) (150m and 2 min walk) and at neighborhood level (greater than 0.5ha) (400m and 5 min walk). (see also geodata portal, open geodata portal, quantified in city in figures)Low range zone of planned neighbourhood-use green (>0.5ha): Eilandje en Scheldekaaien.Met building block and neighborhood green we mean:- publicly accessible green: parks, pocket parks, hanging greenery, fort greenery, dog walking area, city forest, play forest, cemetery, green playgrounds, publicly accessible building greenery- building block (smaller than 0.5 ha or 5,000m2): For example, greenery around St. Paul's Church neighborhood (greater than 0.5 ha or 5,000m2): This data layer is updated annually in January, provided that the facility is managed and updated annually by the relevant sector/service.The facility has a certain range based on walking distance, taking into account important barriers (water, ring, highway, rail,...) and safe crossings for vulnerable road users (tunnels, bridges, pedestrian crossings with traffic lights). - Building block device: 150 meters or 2 minutes walking- neighborhood facility: 400 meters or 5 minutes walking- neighbourhood facilities: 800 meters or 10 minutes walking/ 1,000 meters or 15 minutes walking- district: 1,600 meters or 20 minutes of walking or 10 minutes of cycling / 2,400 meters or 30 minutes of walking or 15 minutes of cycling.In total, about 50 local residential support facilities get reach zones.In combination with the deficit zone, this layer gives an idea of the spatial distribution of this facility. This allows the policy to plan a balanced spatial distribution of the facility based on walking distance.低覆盖范围的使用型绿地覆盖分级：组团层级（面积小于0.5公顷）步行可达范围为150米或2分钟，邻里层级（面积大于0.5公顷）步行可达范围为400米或5分钟。相关数据详见地理数据门户（geodata portal）、开放地理数据门户（open geodata portal），已以量化图表形式呈现于城市官方报告中。 规划型邻里使用绿地（面积大于0.5公顷）的低覆盖范围区：艾兰杰区（Eilandje）与斯海尔德卡恩区（Scheldekaaien）。 本数据集所定义的组团级与邻里级绿地包括： - 公共可达型绿地：公园、口袋公园、悬挂式绿化、堡垒绿地、遛犬区、城市森林、游乐林、公墓、绿色游乐场、建筑附属公共绿地 - 组团级（面积小于0.5公顷，即5000平方米）与邻里级（面积大于0.5公顷，即5000平方米）绿地示例：圣保罗教堂周边绿地。 该数据图层每年1月更新，更新前提为相关主管部门或服务机构每年对设施数据进行维护与更新。 本数据集基于步行距离划定设施服务范围，同时需考量重要阻隔要素（水体、城市环路、高速公路、铁路等）以及弱势道路使用者的安全过街设施（隧道、桥梁、带交通信号灯的人行横道）： - 组团级设施：步行150米或2分钟 - 邻里级设施：步行400米或5分钟 - 社区级设施：步行800米或10分钟，或步行1000米或15分钟 - 片区级设施：步行1600米或20分钟/骑行10分钟，或步行2400米或30分钟/骑行15分钟 总计约有50处本地居住配套设施划定了专属服务覆盖范围。 结合服务盲区（赤字区）图层，该数据图层可清晰展示该类设施的空间分布格局，辅助政策制定者基于步行可达性合理规划设施的均衡空间布局。